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Finding the Fourth Proportional to 36,142.20, 54,185.51 and 18,358.25

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Solution

The fourth proportional to 36,142.20, 54,185.51 and 18,358.25 is: 27,523.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,142.20 : 54,185.51 = 18,358.25 : x
  2. Step 2: Convert to fraction form
    36,142.20/54,185.51 = 18,358.25/x
  3. Step 3: Cross multiply
    36,142.20x = 54,185.51 × 18,358.25
  4. Step 4: Simplify right side
    36,142.20x = 994,750,810.66
  5. Step 5: Solve for x
    x = 994,750,810.66/36,142.20
  6. Step 6: Final answer
    x = 27,523.25

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.