Finding the Fourth Proportional to 75,170.78, 112,755.36 and 22,578.02
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Solution
The fourth proportional to 75,170.78, 112,755.36 and 22,578.02 is: 33,866.79
Step by Step Solution
- Step 1: Write the proportion equation
75,170.78 : 112,755.36 = 22,578.02 : x - Step 2: Convert to fraction form
75,170.78/112,755.36 = 22,578.02/x - Step 3: Cross multiply
75,170.78x = 112,755.36 × 22,578.02 - Step 4: Simplify right side
75,170.78x = 2,545,792,773.19 - Step 5: Solve for x
x = 2,545,792,773.19/75,170.78 - Step 6: Final answer
x = 33,866.79
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.