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Finding the Fourth Proportional to 36,115.60, 54,151.80 and 18,619.60

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Solution

The fourth proportional to 36,115.60, 54,151.80 and 18,619.60 is: 27,918.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,115.60 : 54,151.80 = 18,619.60 : x
  2. Step 2: Convert to fraction form
    36,115.60/54,151.80 = 18,619.60/x
  3. Step 3: Cross multiply
    36,115.60x = 54,151.80 × 18,619.60
  4. Step 4: Simplify right side
    36,115.60x = 1,008,284,855.28
  5. Step 5: Solve for x
    x = 1,008,284,855.28/36,115.60
  6. Step 6: Final answer
    x = 27,918.26

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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.