Home / 89,614.56-123,671.04-49,331.28

Finding the Fourth Proportional to 89,614.56, 123,671.04 and 49,331.28

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Solution

The fourth proportional to 89,614.56, 123,671.04 and 49,331.28 is: 68,078.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,614.56 : 123,671.04 = 49,331.28 : x
  2. Step 2: Convert to fraction form
    89,614.56/123,671.04 = 49,331.28/x
  3. Step 3: Cross multiply
    89,614.56x = 123,671.04 × 49,331.28
  4. Step 4: Simplify right side
    89,614.56x = 6,100,850,702.13
  5. Step 5: Solve for x
    x = 6,100,850,702.13/89,614.56
  6. Step 6: Final answer
    x = 68,078.79

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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.