Home / 80,250.22-120,371.68-30,326.50

Finding the Fourth Proportional to 80,250.22, 120,371.68 and 30,326.50

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Solution

The fourth proportional to 80,250.22, 120,371.68 and 30,326.50 is: 45,488.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,250.22 : 120,371.68 = 30,326.50 : x
  2. Step 2: Convert to fraction form
    80,250.22/120,371.68 = 30,326.50/x
  3. Step 3: Cross multiply
    80,250.22x = 120,371.68 × 30,326.50
  4. Step 4: Simplify right side
    80,250.22x = 3,650,451,753.52
  5. Step 5: Solve for x
    x = 3,650,451,753.52/80,250.22
  6. Step 6: Final answer
    x = 45,488.37

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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.