Home / 87,883.80-121,287.11-49,650.36

Finding the Fourth Proportional to 87,883.80, 121,287.11 and 49,650.36

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Solution

The fourth proportional to 87,883.80, 121,287.11 and 49,650.36 is: 68,521.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,883.80 : 121,287.11 = 49,650.36 : x
  2. Step 2: Convert to fraction form
    87,883.80/121,287.11 = 49,650.36/x
  3. Step 3: Cross multiply
    87,883.80x = 121,287.11 × 49,650.36
  4. Step 4: Simplify right side
    87,883.80x = 6,021,948,426.61
  5. Step 5: Solve for x
    x = 6,021,948,426.61/87,883.80
  6. Step 6: Final answer
    x = 68,521.71

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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.