Home / 87,423.40-131,135.10-59,429.80

Finding the Fourth Proportional to 87,423.40, 131,135.10 and 59,429.80

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Solution

The fourth proportional to 87,423.40, 131,135.10 and 59,429.80 is: 89,144.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,423.40 : 131,135.10 = 59,429.80 : x
  2. Step 2: Convert to fraction form
    87,423.40/131,135.10 = 59,429.80/x
  3. Step 3: Cross multiply
    87,423.40x = 131,135.10 × 59,429.80
  4. Step 4: Simplify right side
    87,423.40x = 7,793,332,765.98
  5. Step 5: Solve for x
    x = 7,793,332,765.98/87,423.40
  6. Step 6: Final answer
    x = 89,144.70

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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.