Home / 81,419.94-112,296.33-54,553.86

Finding the Fourth Proportional to 81,419.94, 112,296.33 and 54,553.86

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Solution

The fourth proportional to 81,419.94, 112,296.33 and 54,553.86 is: 75,241.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,419.94 : 112,296.33 = 54,553.86 : x
  2. Step 2: Convert to fraction form
    81,419.94/112,296.33 = 54,553.86/x
  3. Step 3: Cross multiply
    81,419.94x = 112,296.33 × 54,553.86
  4. Step 4: Simplify right side
    81,419.94x = 6,126,198,265.33
  5. Step 5: Solve for x
    x = 6,126,198,265.33/81,419.94
  6. Step 6: Final answer
    x = 75,241.99

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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.