Home / 87,710.20-131,566.50-28,546.12

Finding the Fourth Proportional to 87,710.20, 131,566.50 and 28,546.12

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Solution

The fourth proportional to 87,710.20, 131,566.50 and 28,546.12 is: 42,819.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,710.20 : 131,566.50 = 28,546.12 : x
  2. Step 2: Convert to fraction form
    87,710.20/131,566.50 = 28,546.12/x
  3. Step 3: Cross multiply
    87,710.20x = 131,566.50 × 28,546.12
  4. Step 4: Simplify right side
    87,710.20x = 3,755,713,096.98
  5. Step 5: Solve for x
    x = 3,755,713,096.98/87,710.20
  6. Step 6: Final answer
    x = 42,819.57

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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.