Question

17 : 60 : : 20 : ? (1) 57 (2) 69 (3) 81 (4) 93

Answer 1

Answer:

Step-by-step explanation:

17: 60:: 20: ?

let the fourth proportion be x

then, 17: 60: : 20 : x

 =  17* x = 60 *20

= x = 60 * 20/17

 =   70.58