Home / 80,240.38-120,385.76-48,256.26

Finding the Fourth Proportional to 80,240.38, 120,385.76 and 48,256.26

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Solution

The fourth proportional to 80,240.38, 120,385.76 and 48,256.26 is: 72,399.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,240.38 : 120,385.76 = 48,256.26 : x
  2. Step 2: Convert to fraction form
    80,240.38/120,385.76 = 48,256.26/x
  3. Step 3: Cross multiply
    80,240.38x = 120,385.76 × 48,256.26
  4. Step 4: Simplify right side
    80,240.38x = 5,809,366,534.86
  5. Step 5: Solve for x
    x = 5,809,366,534.86/80,240.38
  6. Step 6: Final answer
    x = 72,399.54

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1.5x scale

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.