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Finding the Fourth Proportional to 80,280.56, 120,420.84 and 33,500.63

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Solution

The fourth proportional to 80,280.56, 120,420.84 and 33,500.63 is: 50,250.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,280.56 : 120,420.84 = 33,500.63 : x
  2. Step 2: Convert to fraction form
    80,280.56/120,420.84 = 33,500.63/x
  3. Step 3: Cross multiply
    80,280.56x = 120,420.84 × 33,500.63
  4. Step 4: Simplify right side
    80,280.56x = 4,034,173,403.03
  5. Step 5: Solve for x
    x = 4,034,173,403.03/80,280.56
  6. Step 6: Final answer
    x = 50,250.94

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Similar ratio
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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.