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Finding the Fourth Proportional to 36,149.80, 54,119.10 and 25,781.80

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Solution

The fourth proportional to 36,149.80, 54,119.10 and 25,781.80 is: 38,597.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,149.80 : 54,119.10 = 25,781.80 : x
  2. Step 2: Convert to fraction form
    36,149.80/54,119.10 = 25,781.80/x
  3. Step 3: Cross multiply
    36,149.80x = 54,119.10 × 25,781.80
  4. Step 4: Simplify right side
    36,149.80x = 1,395,287,812.38
  5. Step 5: Solve for x
    x = 1,395,287,812.38/36,149.80
  6. Step 6: Final answer
    x = 38,597.39

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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.