Finding the Fourth Proportional to 87,363.30, 131,044.95 and 28,207.68
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Solution
The fourth proportional to 87,363.30, 131,044.95 and 28,207.68 is: 42,311.52
Step by Step Solution
- Step 1: Write the proportion equation
87,363.30 : 131,044.95 = 28,207.68 : x - Step 2: Convert to fraction form
87,363.30/131,044.95 = 28,207.68/x - Step 3: Cross multiply
87,363.30x = 131,044.95 × 28,207.68 - Step 4: Simplify right side
87,363.30x = 3,696,473,874.18 - Step 5: Solve for x
x = 3,696,473,874.18/87,363.30 - Step 6: Final answer
x = 42,311.52
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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.