Home / 89,767.48-123,879.10-49,481.92

Finding the Fourth Proportional to 89,767.48, 123,879.10 and 49,481.92

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Solution

The fourth proportional to 89,767.48, 123,879.10 and 49,481.92 is: 68,285.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,767.48 : 123,879.10 = 49,481.92 : x
  2. Step 2: Convert to fraction form
    89,767.48/123,879.10 = 49,481.92/x
  3. Step 3: Cross multiply
    89,767.48x = 123,879.10 × 49,481.92
  4. Step 4: Simplify right side
    89,767.48x = 6,129,775,517.60
  5. Step 5: Solve for x
    x = 6,129,775,517.60/89,767.48
  6. Step 6: Final answer
    x = 68,285.03

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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.