Finding the Fourth Proportional to 75,169.28, 112,755.29 and 27,135.95
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Solution
The fourth proportional to 75,169.28, 112,755.29 and 27,135.95 is: 40,704.41
Step by Step Solution
- Step 1: Write the proportion equation
75,169.28 : 112,755.29 = 27,135.95 : x - Step 2: Convert to fraction form
75,169.28/112,755.29 = 27,135.95/x - Step 3: Cross multiply
75,169.28x = 112,755.29 × 27,135.95 - Step 4: Simplify right side
75,169.28x = 3,059,721,212.22 - Step 5: Solve for x
x = 3,059,721,212.22/75,169.28 - Step 6: Final answer
x = 40,704.41
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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.