Finding the Fourth Proportional to 87,715.44, 131,542.11 and 28,540.08
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Solution
The fourth proportional to 87,715.44, 131,542.11 and 28,540.08 is: 42,800.02
Step by Step Solution
- Step 1: Write the proportion equation
87,715.44 : 131,542.11 = 28,540.08 : x - Step 2: Convert to fraction form
87,715.44/131,542.11 = 28,540.08/x - Step 3: Cross multiply
87,715.44x = 131,542.11 × 28,540.08 - Step 4: Simplify right side
87,715.44x = 3,754,222,342.77 - Step 5: Solve for x
x = 3,754,222,342.77/87,715.44 - Step 6: Final answer
x = 42,800.02
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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.