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Finding the Fourth Proportional to 81,425.40, 112,373.96 and 45,614.92

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Solution

The fourth proportional to 81,425.40, 112,373.96 and 45,614.92 is: 62,952.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,425.40 : 112,373.96 = 45,614.92 : x
  2. Step 2: Convert to fraction form
    81,425.40/112,373.96 = 45,614.92/x
  3. Step 3: Cross multiply
    81,425.40x = 112,373.96 × 45,614.92
  4. Step 4: Simplify right side
    81,425.40x = 5,125,929,195.48
  5. Step 5: Solve for x
    x = 5,125,929,195.48/81,425.40
  6. Step 6: Final answer
    x = 62,952.46

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1.5x scale

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.