Home / 83,974.14-125,964.86-31,354.92

Finding the Fourth Proportional to 83,974.14, 125,964.86 and 31,354.92

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Solution

The fourth proportional to 83,974.14, 125,964.86 and 31,354.92 is: 47,033.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,974.14 : 125,964.86 = 31,354.92 : x
  2. Step 2: Convert to fraction form
    83,974.14/125,964.86 = 31,354.92/x
  3. Step 3: Cross multiply
    83,974.14x = 125,964.86 × 31,354.92
  4. Step 4: Simplify right side
    83,974.14x = 3,949,617,951.34
  5. Step 5: Solve for x
    x = 3,949,617,951.34/83,974.14
  6. Step 6: Final answer
    x = 47,033.74

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1.5x scale

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.