Home / 74,143.92-111,238.56-21,553.86

Finding the Fourth Proportional to 74,143.92, 111,238.56 and 21,553.86

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Solution

The fourth proportional to 74,143.92, 111,238.56 and 21,553.86 is: 32,337.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,143.92 : 111,238.56 = 21,553.86 : x
  2. Step 2: Convert to fraction form
    74,143.92/111,238.56 = 21,553.86/x
  3. Step 3: Cross multiply
    74,143.92x = 111,238.56 × 21,553.86
  4. Step 4: Simplify right side
    74,143.92x = 2,397,620,348.84
  5. Step 5: Solve for x
    x = 2,397,620,348.84/74,143.92
  6. Step 6: Final answer
    x = 32,337.38

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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.