Home / 82,455.03-123,721.43-29,850.39

Finding the Fourth Proportional to 82,455.03, 123,721.43 and 29,850.39

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Solution

The fourth proportional to 82,455.03, 123,721.43 and 29,850.39 is: 44,789.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,455.03 : 123,721.43 = 29,850.39 : x
  2. Step 2: Convert to fraction form
    82,455.03/123,721.43 = 29,850.39/x
  3. Step 3: Cross multiply
    82,455.03x = 123,721.43 × 29,850.39
  4. Step 4: Simplify right side
    82,455.03x = 3,693,132,787.61
  5. Step 5: Solve for x
    x = 3,693,132,787.61/82,455.03
  6. Step 6: Final answer
    x = 44,789.66

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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.