Home / 87,759.81-121,098.15-49,517.13

Finding the Fourth Proportional to 87,759.81, 121,098.15 and 49,517.13

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Solution

The fourth proportional to 87,759.81, 121,098.15 and 49,517.13 is: 68,327.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,759.81 : 121,098.15 = 49,517.13 : x
  2. Step 2: Convert to fraction form
    87,759.81/121,098.15 = 49,517.13/x
  3. Step 3: Cross multiply
    87,759.81x = 121,098.15 × 49,517.13
  4. Step 4: Simplify right side
    87,759.81x = 5,996,432,836.31
  5. Step 5: Solve for x
    x = 5,996,432,836.31/87,759.81
  6. Step 6: Final answer
    x = 68,327.78

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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.