Home / 89,705.97-123,789.64-49,418.85

Finding the Fourth Proportional to 89,705.97, 123,789.64 and 49,418.85

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Solution

The fourth proportional to 89,705.97, 123,789.64 and 49,418.85 is: 68,195.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,705.97 : 123,789.64 = 49,418.85 : x
  2. Step 2: Convert to fraction form
    89,705.97/123,789.64 = 49,418.85/x
  3. Step 3: Cross multiply
    89,705.97x = 123,789.64 × 49,418.85
  4. Step 4: Simplify right side
    89,705.97x = 6,117,541,712.49
  5. Step 5: Solve for x
    x = 6,117,541,712.49/89,705.97
  6. Step 6: Final answer
    x = 68,195.48

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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.