Home / 87,423.20-131,134.71-34,869.59

Finding the Fourth Proportional to 87,423.20, 131,134.71 and 34,869.59

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Solution

The fourth proportional to 87,423.20, 131,134.71 and 34,869.59 is: 52,304.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,423.20 : 131,134.71 = 34,869.59 : x
  2. Step 2: Convert to fraction form
    87,423.20/131,134.71 = 34,869.59/x
  3. Step 3: Cross multiply
    87,423.20x = 131,134.71 × 34,869.59
  4. Step 4: Simplify right side
    87,423.20x = 4,572,613,572.47
  5. Step 5: Solve for x
    x = 4,572,613,572.47/87,423.20
  6. Step 6: Final answer
    x = 52,304.35

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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.