Home / 84,481.73-126,747.89-48,934.78

Finding the Fourth Proportional to 84,481.73, 126,747.89 and 48,934.78

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Solution

The fourth proportional to 84,481.73, 126,747.89 and 48,934.78 is: 73,416.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,481.73 : 126,747.89 = 48,934.78 : x
  2. Step 2: Convert to fraction form
    84,481.73/126,747.89 = 48,934.78/x
  3. Step 3: Cross multiply
    84,481.73x = 126,747.89 × 48,934.78
  4. Step 4: Simplify right side
    84,481.73x = 6,202,380,447.53
  5. Step 5: Solve for x
    x = 6,202,380,447.53/84,481.73
  6. Step 6: Final answer
    x = 73,416.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.