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Finding the Fourth Proportional to 67,220.46, 100,807.18 and 19,822.97

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Solution

The fourth proportional to 67,220.46, 100,807.18 and 19,822.97 is: 29,727.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,220.46 : 100,807.18 = 19,822.97 : x
  2. Step 2: Convert to fraction form
    67,220.46/100,807.18 = 19,822.97/x
  3. Step 3: Cross multiply
    67,220.46x = 100,807.18 × 19,822.97
  4. Step 4: Simplify right side
    67,220.46x = 1,998,297,907.39
  5. Step 5: Solve for x
    x = 1,998,297,907.39/67,220.46
  6. Step 6: Final answer
    x = 29,727.53

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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.