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Finding the Fourth Proportional to 36,860.90, 55,285.88 and 18,135.90

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Solution

The fourth proportional to 36,860.90, 55,285.88 and 18,135.90 is: 27,201.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,860.90 : 55,285.88 = 18,135.90 : x
  2. Step 2: Convert to fraction form
    36,860.90/55,285.88 = 18,135.90/x
  3. Step 3: Cross multiply
    36,860.90x = 55,285.88 × 18,135.90
  4. Step 4: Simplify right side
    36,860.90x = 1,002,659,191.09
  5. Step 5: Solve for x
    x = 1,002,659,191.09/36,860.90
  6. Step 6: Final answer
    x = 27,201.16

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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.