Home / 80,826.30-111,540.17-45,019.44

Finding the Fourth Proportional to 80,826.30, 111,540.17 and 45,019.44

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Solution

The fourth proportional to 80,826.30, 111,540.17 and 45,019.44 is: 62,126.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,826.30 : 111,540.17 = 45,019.44 : x
  2. Step 2: Convert to fraction form
    80,826.30/111,540.17 = 45,019.44/x
  3. Step 3: Cross multiply
    80,826.30x = 111,540.17 × 45,019.44
  4. Step 4: Simplify right side
    80,826.30x = 5,021,476,103.45
  5. Step 5: Solve for x
    x = 5,021,476,103.45/80,826.30
  6. Step 6: Final answer
    x = 62,126.76

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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.