Home / 82,474.68-123,711.96-29,205.72

Finding the Fourth Proportional to 82,474.68, 123,711.96 and 29,205.72

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Solution

The fourth proportional to 82,474.68, 123,711.96 and 29,205.72 is: 43,808.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,474.68 : 123,711.96 = 29,205.72 : x
  2. Step 2: Convert to fraction form
    82,474.68/123,711.96 = 29,205.72/x
  3. Step 3: Cross multiply
    82,474.68x = 123,711.96 × 29,205.72
  4. Step 4: Simplify right side
    82,474.68x = 3,613,096,864.41
  5. Step 5: Solve for x
    x = 3,613,096,864.41/82,474.68
  6. Step 6: Final answer
    x = 43,808.56

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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.