What is the relationship between Naruto and the fourth generation Naruto?

Father-son relationship.

Four generations of Muhuoying, a disciple of Jiraiya, one of the three forbearance in Muyeyin Village, the country of fire, and the father of the protagonist Naruto Uzumaki. Powerful, developed spiral pills, and sacrificed to protect the village, using ghosts to seal Kyubi no Youko. In the Fourth Endurance World War, he was resurrected by orochimaru in a filthy form and went to the battlefield to support the Ninja Coalition forces with the resurrected three Huo Ying.

Naruto was helped by using the previously sealed Yin Kyubi no Youko chakra in the Nine Lamas pattern. Unfortunately, it was cut off by saury and six mord sticks in the battle against ten tail, which could not be recovered.

Later, because Naruto was taken away, bijuu sent the remaining Kyubi no Youko and chakra to Naruto, but in the process of transmission, it was unfortunately absorbed by the negative Kyubi no Youko and chakra. Finally, Ootutuki Hagoromo lifted the filth, reincarnated, and his soul ascended to heaven.

Extended data:

Naruto's mother: Uzumaki Kushina.

Watergate's wife, strong, lively and lovely, is good at sealing and printing. She has an innate strong and special chakra who can suppress bijuu, as well as a strong physical quality and vitality unique to the whirlpool family.

Originally, it was a member of the vortex family in the vortex country. Because of its special physique, it was brought to Muyeyin Village, fire nation, and became the second pillar force in Kyubi no Youko. In the end, she died with Watergate to protect the village when Kyubi no Youko attacked Konoha. She entrusted Naruto with her fantasy future, never-giving heart and enterprising spirit.