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Finding the Fourth Proportional to 67,489.77, 101,251.38 and 20,104.65

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Solution

The fourth proportional to 67,489.77, 101,251.38 and 20,104.65 is: 30,161.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,489.77 : 101,251.38 = 20,104.65 : x
  2. Step 2: Convert to fraction form
    67,489.77/101,251.38 = 20,104.65/x
  3. Step 3: Cross multiply
    67,489.77x = 101,251.38 × 20,104.65
  4. Step 4: Simplify right side
    67,489.77x = 2,035,623,556.92
  5. Step 5: Solve for x
    x = 2,035,623,556.92/67,489.77
  6. Step 6: Final answer
    x = 30,161.96

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1.5x scale

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.