Home / 80,794.53-121,220.96-28,211.76

Finding the Fourth Proportional to 80,794.53, 121,220.96 and 28,211.76

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Solution

The fourth proportional to 80,794.53, 121,220.96 and 28,211.76 is: 42,327.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,794.53 : 121,220.96 = 28,211.76 : x
  2. Step 2: Convert to fraction form
    80,794.53/121,220.96 = 28,211.76/x
  3. Step 3: Cross multiply
    80,794.53x = 121,220.96 × 28,211.76
  4. Step 4: Simplify right side
    80,794.53x = 3,419,856,489.43
  5. Step 5: Solve for x
    x = 3,419,856,489.43/80,794.53
  6. Step 6: Final answer
    x = 42,327.82

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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.