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Finding the Fourth Proportional to 36,134.40, 54,158.40 and 18,595.20

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Solution

The fourth proportional to 36,134.40, 54,158.40 and 18,595.20 is: 27,870.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,134.40 : 54,158.40 = 18,595.20 : x
  2. Step 2: Convert to fraction form
    36,134.40/54,158.40 = 18,595.20/x
  3. Step 3: Cross multiply
    36,134.40x = 54,158.40 × 18,595.20
  4. Step 4: Simplify right side
    36,134.40x = 1,007,086,279.68
  5. Step 5: Solve for x
    x = 1,007,086,279.68/36,134.40
  6. Step 6: Final answer
    x = 27,870.57

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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.