Home / 83,691.20-115,494.08-45,966.40

Finding the Fourth Proportional to 83,691.20, 115,494.08 and 45,966.40

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Solution

The fourth proportional to 83,691.20, 115,494.08 and 45,966.40 is: 63,433.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,691.20 : 115,494.08 = 45,966.40 : x
  2. Step 2: Convert to fraction form
    83,691.20/115,494.08 = 45,966.40/x
  3. Step 3: Cross multiply
    83,691.20x = 115,494.08 × 45,966.40
  4. Step 4: Simplify right side
    83,691.20x = 5,308,847,078.91
  5. Step 5: Solve for x
    x = 5,308,847,078.91/83,691.20
  6. Step 6: Final answer
    x = 63,433.76

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1.5x scale

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.