Home / 84,660.20-126,932.70-40,308.20

Finding the Fourth Proportional to 84,660.20, 126,932.70 and 40,308.20

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Solution

The fourth proportional to 84,660.20, 126,932.70 and 40,308.20 is: 60,434.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,660.20 : 126,932.70 = 40,308.20 : x
  2. Step 2: Convert to fraction form
    84,660.20/126,932.70 = 40,308.20/x
  3. Step 3: Cross multiply
    84,660.20x = 126,932.70 × 40,308.20
  4. Step 4: Simplify right side
    84,660.20x = 5,116,428,658.14
  5. Step 5: Solve for x
    x = 5,116,428,658.14/84,660.20
  6. Step 6: Final answer
    x = 60,434.88

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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.