If Mr. Jones served 85 hot dogs to 50 people the proportion of hot dogs is:
![(85)/(50)\text{ hot dogs/person}](https://img.qammunity.org/2023/formulas/mathematics/high-school/2x4sdom98bvkiwfzj2ri5hflwj2427m2u2.png)
If he expects 68 people at the fall picnic, the amount of hot dogs he will need is the number of people multiplied by this proportion:
![\text{hot dogs = 68p }\cdot(85)/(50)\text{ hot dogs/p}](https://img.qammunity.org/2023/formulas/mathematics/high-school/3z2exsasuvozosamj3f9k8tzfwr45zjxmw.png)
Answer
The proportion that could be used to find how many hot dogs Mr. Jones will need for the fall picnic is 85/50
He will need 115.6 hot dogs (since the number of hot dogs is a whole number, He will have to buy 116 hot dogs)