Home / 74,380.26-111,589.29-21,072.18

Finding the Fourth Proportional to 74,380.26, 111,589.29 and 21,072.18

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Solution

The fourth proportional to 74,380.26, 111,589.29 and 21,072.18 is: 31,613.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,380.26 : 111,589.29 = 21,072.18 : x
  2. Step 2: Convert to fraction form
    74,380.26/111,589.29 = 21,072.18/x
  3. Step 3: Cross multiply
    74,380.26x = 111,589.29 × 21,072.18
  4. Step 4: Simplify right side
    74,380.26x = 2,351,429,604.95
  5. Step 5: Solve for x
    x = 2,351,429,604.95/74,380.26
  6. Step 6: Final answer
    x = 31,613.62

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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.