Home / 83,896.20-125,801.10-31,278.60

Finding the Fourth Proportional to 83,896.20, 125,801.10 and 31,278.60

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Solution

The fourth proportional to 83,896.20, 125,801.10 and 31,278.60 is: 46,901.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,896.20 : 125,801.10 = 31,278.60 : x
  2. Step 2: Convert to fraction form
    83,896.20/125,801.10 = 31,278.60/x
  3. Step 3: Cross multiply
    83,896.20x = 125,801.10 × 31,278.60
  4. Step 4: Simplify right side
    83,896.20x = 3,934,882,286.46
  5. Step 5: Solve for x
    x = 3,934,882,286.46/83,896.20
  6. Step 6: Final answer
    x = 46,901.79

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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.