Home / 75,791.28-104,592.20-42,258.48

Finding the Fourth Proportional to 75,791.28, 104,592.20 and 42,258.48

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Solution

The fourth proportional to 75,791.28, 104,592.20 and 42,258.48 is: 58,316.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,791.28 : 104,592.20 = 42,258.48 : x
  2. Step 2: Convert to fraction form
    75,791.28/104,592.20 = 42,258.48/x
  3. Step 3: Cross multiply
    75,791.28x = 104,592.20 × 42,258.48
  4. Step 4: Simplify right side
    75,791.28x = 4,419,907,391.86
  5. Step 5: Solve for x
    x = 4,419,907,391.86/75,791.28
  6. Step 6: Final answer
    x = 58,316.83

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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.