Question

Find the value of x in the following proportions

a.,12,32,48
b.30, ,25,100
c.45,15, ,60
d.5,6,20,

Answer 1

(a) 12, 32 , 48. , x

12 : 32 = 48 :x

12 × x = 48 × 32

12 × x = 1536

x = 1536/12

x = 128

(b) 30,25,100,x

30 : 25 = 100 : x

30× x = 100 × 25

30 × x = 2500

x= 2500/ 30

x = 83.3

(c) 45,15,60,x

45 : 15 = 60 : x

45 × x = 60 × 15

45 × x = 900

x = 900/45

x = 20

(d) 5,6,20,x

5 : 6 = 20 : x

5 × x = 20 × 6

5× x = 120

x = 120/5

x = 24

here, are all your answers