Home / 87,088.18-120,191.08-49,358.38

Finding the Fourth Proportional to 87,088.18, 120,191.08 and 49,358.38

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Solution

The fourth proportional to 87,088.18, 120,191.08 and 49,358.38 is: 68,119.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,088.18 : 120,191.08 = 49,358.38 : x
  2. Step 2: Convert to fraction form
    87,088.18/120,191.08 = 49,358.38/x
  3. Step 3: Cross multiply
    87,088.18x = 120,191.08 × 49,358.38
  4. Step 4: Simplify right side
    87,088.18x = 5,932,436,398.30
  5. Step 5: Solve for x
    x = 5,932,436,398.30/87,088.18
  6. Step 6: Final answer
    x = 68,119.88

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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.