Home / 87,850.28-121,231.16-49,088.42

Finding the Fourth Proportional to 87,850.28, 121,231.16 and 49,088.42

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Solution

The fourth proportional to 87,850.28, 121,231.16 and 49,088.42 is: 67,740.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,850.28 : 121,231.16 = 49,088.42 : x
  2. Step 2: Convert to fraction form
    87,850.28/121,231.16 = 49,088.42/x
  3. Step 3: Cross multiply
    87,850.28x = 121,231.16 × 49,088.42
  4. Step 4: Simplify right side
    87,850.28x = 5,951,046,099.17
  5. Step 5: Solve for x
    x = 5,951,046,099.17/87,850.28
  6. Step 6: Final answer
    x = 67,740.78

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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.