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Finding the Fourth Proportional to 80,107.65, 120,169.62 and 27,510.30

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Solution

The fourth proportional to 80,107.65, 120,169.62 and 27,510.30 is: 41,268.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,107.65 : 120,169.62 = 27,510.30 : x
  2. Step 2: Convert to fraction form
    80,107.65/120,169.62 = 27,510.30/x
  3. Step 3: Cross multiply
    80,107.65x = 120,169.62 × 27,510.30
  4. Step 4: Simplify right side
    80,107.65x = 3,305,902,297.09
  5. Step 5: Solve for x
    x = 3,305,902,297.09/80,107.65
  6. Step 6: Final answer
    x = 41,268.25

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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.