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Finding the Fourth Proportional to 84,353.28, 126,529.82 and 34,456.82

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Solution

The fourth proportional to 84,353.28, 126,529.82 and 34,456.82 is: 51,685.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,353.28 : 126,529.82 = 34,456.82 : x
  2. Step 2: Convert to fraction form
    84,353.28/126,529.82 = 34,456.82/x
  3. Step 3: Cross multiply
    84,353.28x = 126,529.82 × 34,456.82
  4. Step 4: Simplify right side
    84,353.28x = 4,359,815,232.37
  5. Step 5: Solve for x
    x = 4,359,815,232.37/84,353.28
  6. Step 6: Final answer
    x = 51,685.19

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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.