Home / 80,445.12-120,684.68-24,289.44

Finding the Fourth Proportional to 80,445.12, 120,684.68 and 24,289.44

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Solution

The fourth proportional to 80,445.12, 120,684.68 and 24,289.44 is: 36,439.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,445.12 : 120,684.68 = 24,289.44 : x
  2. Step 2: Convert to fraction form
    80,445.12/120,684.68 = 24,289.44/x
  3. Step 3: Cross multiply
    80,445.12x = 120,684.68 × 24,289.44
  4. Step 4: Simplify right side
    80,445.12x = 2,931,363,293.78
  5. Step 5: Solve for x
    x = 2,931,363,293.78/80,445.12
  6. Step 6: Final answer
    x = 36,439.29

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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.