Finding the Fourth Proportional to 87,617.26, 131,401.68 and 37,686.70
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Solution
The fourth proportional to 87,617.26, 131,401.68 and 37,686.70 is: 56,519.64
Step by Step Solution
- Step 1: Write the proportion equation
87,617.26 : 131,401.68 = 37,686.70 : x - Step 2: Convert to fraction form
87,617.26/131,401.68 = 37,686.70/x - Step 3: Cross multiply
87,617.26x = 131,401.68 × 37,686.70 - Step 4: Simplify right side
87,617.26x = 4,952,095,693.66 - Step 5: Solve for x
x = 4,952,095,693.66/87,617.26 - Step 6: Final answer
x = 56,519.64
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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.