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Finding the Fourth Proportional to 67,228.80, 100,843.20 and 27,772.80

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Solution

The fourth proportional to 67,228.80, 100,843.20 and 27,772.80 is: 41,659.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,228.80 : 100,843.20 = 27,772.80 : x
  2. Step 2: Convert to fraction form
    67,228.80/100,843.20 = 27,772.80/x
  3. Step 3: Cross multiply
    67,228.80x = 100,843.20 × 27,772.80
  4. Step 4: Simplify right side
    67,228.80x = 2,800,698,024.96
  5. Step 5: Solve for x
    x = 2,800,698,024.96/67,228.80
  6. Step 6: Final answer
    x = 41,659.20

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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.