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Finding the Fourth Proportional to 84,553.40, 126,830.10 and 83,324.60

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Solution

The fourth proportional to 84,553.40, 126,830.10 and 83,324.60 is: 124,986.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,553.40 : 126,830.10 = 83,324.60 : x
  2. Step 2: Convert to fraction form
    84,553.40/126,830.10 = 83,324.60/x
  3. Step 3: Cross multiply
    84,553.40x = 126,830.10 × 83,324.60
  4. Step 4: Simplify right side
    84,553.40x = 10,568,067,350.46
  5. Step 5: Solve for x
    x = 10,568,067,350.46/84,553.40
  6. Step 6: Final answer
    x = 124,986.90

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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.