Home / 67,213.04-100,834.56-20,469.52

Finding the Fourth Proportional to 67,213.04, 100,834.56 and 20,469.52

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Solution

The fourth proportional to 67,213.04, 100,834.56 and 20,469.52 is: 30,708.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,213.04 : 100,834.56 = 20,469.52 : x
  2. Step 2: Convert to fraction form
    67,213.04/100,834.56 = 20,469.52/x
  3. Step 3: Cross multiply
    67,213.04x = 100,834.56 × 20,469.52
  4. Step 4: Simplify right side
    67,213.04x = 2,064,035,042.61
  5. Step 5: Solve for x
    x = 2,064,035,042.61/67,213.04
  6. Step 6: Final answer
    x = 30,708.85

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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.