Finding the Fourth Proportional to 87,663.87, 131,495.81 and 56,520.99
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Solution
The fourth proportional to 87,663.87, 131,495.81 and 56,520.99 is: 84,781.49
Step by Step Solution
- Step 1: Write the proportion equation
87,663.87 : 131,495.81 = 56,520.99 : x - Step 2: Convert to fraction form
87,663.87/131,495.81 = 56,520.99/x - Step 3: Cross multiply
87,663.87x = 131,495.81 × 56,520.99 - Step 4: Simplify right side
87,663.87x = 7,432,273,079.45 - Step 5: Solve for x
x = 7,432,273,079.45/87,663.87 - Step 6: Final answer
x = 84,781.49
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1.5x scale
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.