Home / 78,693.11-108,593.33-42,882.36

Finding the Fourth Proportional to 78,693.11, 108,593.33 and 42,882.36

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Solution

The fourth proportional to 78,693.11, 108,593.33 and 42,882.36 is: 59,175.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,693.11 : 108,593.33 = 42,882.36 : x
  2. Step 2: Convert to fraction form
    78,693.11/108,593.33 = 42,882.36/x
  3. Step 3: Cross multiply
    78,693.11x = 108,593.33 × 42,882.36
  4. Step 4: Simplify right side
    78,693.11x = 4,656,737,727.69
  5. Step 5: Solve for x
    x = 4,656,737,727.69/78,693.11
  6. Step 6: Final answer
    x = 59,175.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.