Home / 87,876.10-131,901.63-48,451.78

Finding the Fourth Proportional to 87,876.10, 131,901.63 and 48,451.78

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Solution

The fourth proportional to 87,876.10, 131,901.63 and 48,451.78 is: 72,725.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,876.10 : 131,901.63 = 48,451.78 : x
  2. Step 2: Convert to fraction form
    87,876.10/131,901.63 = 48,451.78/x
  3. Step 3: Cross multiply
    87,876.10x = 131,901.63 × 48,451.78
  4. Step 4: Simplify right side
    87,876.10x = 6,390,868,758.40
  5. Step 5: Solve for x
    x = 6,390,868,758.40/87,876.10
  6. Step 6: Final answer
    x = 72,725.90

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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.