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Finding the Fourth Proportional to 80,356.92, 120,589.84 and 32,980.56

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Solution

The fourth proportional to 80,356.92, 120,589.84 and 32,980.56 is: 49,493.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,356.92 : 120,589.84 = 32,980.56 : x
  2. Step 2: Convert to fraction form
    80,356.92/120,589.84 = 32,980.56/x
  3. Step 3: Cross multiply
    80,356.92x = 120,589.84 × 32,980.56
  4. Step 4: Simplify right side
    80,356.92x = 3,977,120,453.51
  5. Step 5: Solve for x
    x = 3,977,120,453.51/80,356.92
  6. Step 6: Final answer
    x = 49,493.19

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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.