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Finding the Fourth Proportional to 80,296.31, 120,452.67 and 27,705.65

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Solution

The fourth proportional to 80,296.31, 120,452.67 and 27,705.65 is: 41,561.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,296.31 : 120,452.67 = 27,705.65 : x
  2. Step 2: Convert to fraction form
    80,296.31/120,452.67 = 27,705.65/x
  3. Step 3: Cross multiply
    80,296.31x = 120,452.67 × 27,705.65
  4. Step 4: Simplify right side
    80,296.31x = 3,337,218,914.32
  5. Step 5: Solve for x
    x = 3,337,218,914.32/80,296.31
  6. Step 6: Final answer
    x = 41,561.30

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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.