Home / 89,761.28-123,873.17-49,477.64

Finding the Fourth Proportional to 89,761.28, 123,873.17 and 49,477.64

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Solution

The fourth proportional to 89,761.28, 123,873.17 and 49,477.64 is: 68,280.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,761.28 : 123,873.17 = 49,477.64 : x
  2. Step 2: Convert to fraction form
    89,761.28/123,873.17 = 49,477.64/x
  3. Step 3: Cross multiply
    89,761.28x = 123,873.17 × 49,477.64
  4. Step 4: Simplify right side
    89,761.28x = 6,128,951,244.16
  5. Step 5: Solve for x
    x = 6,128,951,244.16/89,761.28
  6. Step 6: Final answer
    x = 68,280.57

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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.