Home / 80,317.26-120,660.60-56,679.24

Finding the Fourth Proportional to 80,317.26, 120,660.60 and 56,679.24

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Solution

The fourth proportional to 80,317.26, 120,660.60 and 56,679.24 is: 85,149.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,317.26 : 120,660.60 = 56,679.24 : x
  2. Step 2: Convert to fraction form
    80,317.26/120,660.60 = 56,679.24/x
  3. Step 3: Cross multiply
    80,317.26x = 120,660.60 × 56,679.24
  4. Step 4: Simplify right side
    80,317.26x = 6,838,951,105.94
  5. Step 5: Solve for x
    x = 6,838,951,105.94/80,317.26
  6. Step 6: Final answer
    x = 85,149.21

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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.