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Finding the Fourth Proportional to 80,110.65, 120,174.12 and 27,513.30

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Solution

The fourth proportional to 80,110.65, 120,174.12 and 27,513.30 is: 41,272.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,110.65 : 120,174.12 = 27,513.30 : x
  2. Step 2: Convert to fraction form
    80,110.65/120,174.12 = 27,513.30/x
  3. Step 3: Cross multiply
    80,110.65x = 120,174.12 × 27,513.30
  4. Step 4: Simplify right side
    80,110.65x = 3,306,386,615.80
  5. Step 5: Solve for x
    x = 3,306,386,615.80/80,110.65
  6. Step 6: Final answer
    x = 41,272.75

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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.