Home / 83,391.20-115,079.94-45,150.77

Finding the Fourth Proportional to 83,391.20, 115,079.94 and 45,150.77

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Solution

The fourth proportional to 83,391.20, 115,079.94 and 45,150.77 is: 62,308.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,391.20 : 115,079.94 = 45,150.77 : x
  2. Step 2: Convert to fraction form
    83,391.20/115,079.94 = 45,150.77/x
  3. Step 3: Cross multiply
    83,391.20x = 115,079.94 × 45,150.77
  4. Step 4: Simplify right side
    83,391.20x = 5,195,947,902.55
  5. Step 5: Solve for x
    x = 5,195,947,902.55/83,391.20
  6. Step 6: Final answer
    x = 62,308.11

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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.