Home / 80,863.20-111,577.92-45,045.12

Finding the Fourth Proportional to 80,863.20, 111,577.92 and 45,045.12

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Solution

The fourth proportional to 80,863.20, 111,577.92 and 45,045.12 is: 62,154.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,863.20 : 111,577.92 = 45,045.12 : x
  2. Step 2: Convert to fraction form
    80,863.20/111,577.92 = 45,045.12/x
  3. Step 3: Cross multiply
    80,863.20x = 111,577.92 × 45,045.12
  4. Step 4: Simplify right side
    80,863.20x = 5,026,040,795.75
  5. Step 5: Solve for x
    x = 5,026,040,795.75/80,863.20
  6. Step 6: Final answer
    x = 62,154.86

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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.