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Finding the Fourth Proportional to 73,321.70, 109,982.55 and 51,203.30

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Solution

The fourth proportional to 73,321.70, 109,982.55 and 51,203.30 is: 76,804.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,321.70 : 109,982.55 = 51,203.30 : x
  2. Step 2: Convert to fraction form
    73,321.70/109,982.55 = 51,203.30/x
  3. Step 3: Cross multiply
    73,321.70x = 109,982.55 × 51,203.30
  4. Step 4: Simplify right side
    73,321.70x = 5,631,469,502.42
  5. Step 5: Solve for x
    x = 5,631,469,502.42/73,321.70
  6. Step 6: Final answer
    x = 76,804.95

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Similar ratio
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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.