Home / 80,227.30-120,354.61-40,265.34

Finding the Fourth Proportional to 80,227.30, 120,354.61 and 40,265.34

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Solution

The fourth proportional to 80,227.30, 120,354.61 and 40,265.34 is: 60,404.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,227.30 : 120,354.61 = 40,265.34 : x
  2. Step 2: Convert to fraction form
    80,227.30/120,354.61 = 40,265.34/x
  3. Step 3: Cross multiply
    80,227.30x = 120,354.61 × 40,265.34
  4. Step 4: Simplify right side
    80,227.30x = 4,846,118,489.12
  5. Step 5: Solve for x
    x = 4,846,118,489.12/80,227.30
  6. Step 6: Final answer
    x = 60,404.86

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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.