Home / 89,769.58-123,876.36-49,481.12

Finding the Fourth Proportional to 89,769.58, 123,876.36 and 49,481.12

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Solution

The fourth proportional to 89,769.58, 123,876.36 and 49,481.12 is: 68,280.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,769.58 : 123,876.36 = 49,481.12 : x
  2. Step 2: Convert to fraction form
    89,769.58/123,876.36 = 49,481.12/x
  3. Step 3: Cross multiply
    89,769.58x = 123,876.36 × 49,481.12
  4. Step 4: Simplify right side
    89,769.58x = 6,129,541,034.32
  5. Step 5: Solve for x
    x = 6,129,541,034.32/89,769.58
  6. Step 6: Final answer
    x = 68,280.83

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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.