Home / 55,651.12-83,481.84-18,211.44

Finding the Fourth Proportional to 55,651.12, 83,481.84 and 18,211.44

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Solution

The fourth proportional to 55,651.12, 83,481.84 and 18,211.44 is: 27,318.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,651.12 : 83,481.84 = 18,211.44 : x
  2. Step 2: Convert to fraction form
    55,651.12/83,481.84 = 18,211.44/x
  3. Step 3: Cross multiply
    55,651.12x = 83,481.84 × 18,211.44
  4. Step 4: Simplify right side
    55,651.12x = 1,520,324,520.25
  5. Step 5: Solve for x
    x = 1,520,324,520.25/55,651.12
  6. Step 6: Final answer
    x = 27,318.85

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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.