Home / 87,403.59-120,616.08-48,640.76

Finding the Fourth Proportional to 87,403.59, 120,616.08 and 48,640.76

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Solution

The fourth proportional to 87,403.59, 120,616.08 and 48,640.76 is: 67,123.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,403.59 : 120,616.08 = 48,640.76 : x
  2. Step 2: Convert to fraction form
    87,403.59/120,616.08 = 48,640.76/x
  3. Step 3: Cross multiply
    87,403.59x = 120,616.08 × 48,640.76
  4. Step 4: Simplify right side
    87,403.59x = 5,866,857,648.65
  5. Step 5: Solve for x
    x = 5,866,857,648.65/87,403.59
  6. Step 6: Final answer
    x = 67,123.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.