Home / 82,856.70-124,305.30-38,474.10

Finding the Fourth Proportional to 82,856.70, 124,305.30 and 38,474.10

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Solution

The fourth proportional to 82,856.70, 124,305.30 and 38,474.10 is: 57,720.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,856.70 : 124,305.30 = 38,474.10 : x
  2. Step 2: Convert to fraction form
    82,856.70/124,305.30 = 38,474.10/x
  3. Step 3: Cross multiply
    82,856.70x = 124,305.30 × 38,474.10
  4. Step 4: Simplify right side
    82,856.70x = 4,782,534,542.73
  5. Step 5: Solve for x
    x = 4,782,534,542.73/82,856.70
  6. Step 6: Final answer
    x = 57,720.55

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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.