Home / 87,711.10-131,588.25-25,387.90

Finding the Fourth Proportional to 87,711.10, 131,588.25 and 25,387.90

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Solution

The fourth proportional to 87,711.10, 131,588.25 and 25,387.90 is: 38,088.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,711.10 : 131,588.25 = 25,387.90 : x
  2. Step 2: Convert to fraction form
    87,711.10/131,588.25 = 25,387.90/x
  3. Step 3: Cross multiply
    87,711.10x = 131,588.25 × 25,387.90
  4. Step 4: Simplify right side
    87,711.10x = 3,340,749,332.18
  5. Step 5: Solve for x
    x = 3,340,749,332.18/87,711.10
  6. Step 6: Final answer
    x = 38,088.10

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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.