Home / 87,877.10-131,903.13-48,452.78

Finding the Fourth Proportional to 87,877.10, 131,903.13 and 48,452.78

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Solution

The fourth proportional to 87,877.10, 131,903.13 and 48,452.78 is: 72,727.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,877.10 : 131,903.13 = 48,452.78 : x
  2. Step 2: Convert to fraction form
    87,877.10/131,903.13 = 48,452.78/x
  3. Step 3: Cross multiply
    87,877.10x = 131,903.13 × 48,452.78
  4. Step 4: Simplify right side
    87,877.10x = 6,391,073,339.20
  5. Step 5: Solve for x
    x = 6,391,073,339.20/87,877.10
  6. Step 6: Final answer
    x = 72,727.40

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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.