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Finding the Fourth Proportional to 67,843.80, 101,765.70 and 54,721.80

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Solution

The fourth proportional to 67,843.80, 101,765.70 and 54,721.80 is: 82,082.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,843.80 : 101,765.70 = 54,721.80 : x
  2. Step 2: Convert to fraction form
    67,843.80/101,765.70 = 54,721.80/x
  3. Step 3: Cross multiply
    67,843.80x = 101,765.70 × 54,721.80
  4. Step 4: Simplify right side
    67,843.80x = 5,568,802,282.26
  5. Step 5: Solve for x
    x = 5,568,802,282.26/67,843.80
  6. Step 6: Final answer
    x = 82,082.70

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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.