Home / 87,704.30-131,470.05-43,337.90

Finding the Fourth Proportional to 87,704.30, 131,470.05 and 43,337.90

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Solution

The fourth proportional to 87,704.30, 131,470.05 and 43,337.90 is: 64,964.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,704.30 : 131,470.05 = 43,337.90 : x
  2. Step 2: Convert to fraction form
    87,704.30/131,470.05 = 43,337.90/x
  3. Step 3: Cross multiply
    87,704.30x = 131,470.05 × 43,337.90
  4. Step 4: Simplify right side
    87,704.30x = 5,697,635,879.90
  5. Step 5: Solve for x
    x = 5,697,635,879.90/87,704.30
  6. Step 6: Final answer
    x = 64,964.16

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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.