Home / 74,142.62-111,215.76-21,552.56

Finding the Fourth Proportional to 74,142.62, 111,215.76 and 21,552.56

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Solution

The fourth proportional to 74,142.62, 111,215.76 and 21,552.56 is: 32,329.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,142.62 : 111,215.76 = 21,552.56 : x
  2. Step 2: Convert to fraction form
    74,142.62/111,215.76 = 21,552.56/x
  3. Step 3: Cross multiply
    74,142.62x = 111,215.76 × 21,552.56
  4. Step 4: Simplify right side
    74,142.62x = 2,396,984,340.35
  5. Step 5: Solve for x
    x = 2,396,984,340.35/74,142.62
  6. Step 6: Final answer
    x = 32,329.37

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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.