Question

are 30,40,45 and 60 in proportion.​

Answer 1

Ratio of 30 and 40= 30/40= 3:4

Ratio of 45 and 60= 45/60= 3:4

The ratio of 30 and 40 is equal to the ratio of 45 and 60. Hence they are proportionate to each other or 30:40::45:60.

Answer 2

Step-by-step explanation:

propertion of number 30,40,45,60

p1roduct of number =30×60=1,800

40×45=1,800