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Finding the Fourth Proportional to 82,737.56, 124,081.65 and 30,134.73

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Solution

The fourth proportional to 82,737.56, 124,081.65 and 30,134.73 is: 45,193.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,737.56 : 124,081.65 = 30,134.73 : x
  2. Step 2: Convert to fraction form
    82,737.56/124,081.65 = 30,134.73/x
  3. Step 3: Cross multiply
    82,737.56x = 124,081.65 × 30,134.73
  4. Step 4: Simplify right side
    82,737.56x = 3,739,167,020.70
  5. Step 5: Solve for x
    x = 3,739,167,020.70/82,737.56
  6. Step 6: Final answer
    x = 45,193.11

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1.5x scale

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.