Home / 83,883.28-125,902.68-42,359.44

Finding the Fourth Proportional to 83,883.28, 125,902.68 and 42,359.44

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Solution

The fourth proportional to 83,883.28, 125,902.68 and 42,359.44 is: 63,578.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,883.28 : 125,902.68 = 42,359.44 : x
  2. Step 2: Convert to fraction form
    83,883.28/125,902.68 = 42,359.44/x
  3. Step 3: Cross multiply
    83,883.28x = 125,902.68 × 42,359.44
  4. Step 4: Simplify right side
    83,883.28x = 5,333,167,019.30
  5. Step 5: Solve for x
    x = 5,333,167,019.30/83,883.28
  6. Step 6: Final answer
    x = 63,578.43

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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.