Home / 87,865.68-121,251.96-50,138.04

Finding the Fourth Proportional to 87,865.68, 121,251.96 and 50,138.04

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Solution

The fourth proportional to 87,865.68, 121,251.96 and 50,138.04 is: 69,188.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,865.68 : 121,251.96 = 50,138.04 : x
  2. Step 2: Convert to fraction form
    87,865.68/121,251.96 = 50,138.04/x
  3. Step 3: Cross multiply
    87,865.68x = 121,251.96 × 50,138.04
  4. Step 4: Simplify right side
    87,865.68x = 6,079,335,620.56
  5. Step 5: Solve for x
    x = 6,079,335,620.56/87,865.68
  6. Step 6: Final answer
    x = 69,188.97

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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.