Home / 80,217.80-120,247.26-38,023.28

Finding the Fourth Proportional to 80,217.80, 120,247.26 and 38,023.28

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Solution

The fourth proportional to 80,217.80, 120,247.26 and 38,023.28 is: 56,997.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,217.80 : 120,247.26 = 38,023.28 : x
  2. Step 2: Convert to fraction form
    80,217.80/120,247.26 = 38,023.28/x
  3. Step 3: Cross multiply
    80,217.80x = 120,247.26 × 38,023.28
  4. Step 4: Simplify right side
    80,217.80x = 4,572,195,236.21
  5. Step 5: Solve for x
    x = 4,572,195,236.21/80,217.80
  6. Step 6: Final answer
    x = 56,997.27

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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.