Home / 87,565.16-120,846.05-49,839.41

Finding the Fourth Proportional to 87,565.16, 120,846.05 and 49,839.41

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Solution

The fourth proportional to 87,565.16, 120,846.05 and 49,839.41 is: 68,781.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,565.16 : 120,846.05 = 49,839.41 : x
  2. Step 2: Convert to fraction form
    87,565.16/120,846.05 = 49,839.41/x
  3. Step 3: Cross multiply
    87,565.16x = 120,846.05 × 49,839.41
  4. Step 4: Simplify right side
    87,565.16x = 6,022,894,979.40
  5. Step 5: Solve for x
    x = 6,022,894,979.40/87,565.16
  6. Step 6: Final answer
    x = 68,781.87

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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.