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Finding the Fourth Proportional to 55,220.82, 82,839.04 and 17,772.18

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Solution

The fourth proportional to 55,220.82, 82,839.04 and 17,772.18 is: 26,660.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,220.82 : 82,839.04 = 17,772.18 : x
  2. Step 2: Convert to fraction form
    55,220.82/82,839.04 = 17,772.18/x
  3. Step 3: Cross multiply
    55,220.82x = 82,839.04 × 17,772.18
  4. Step 4: Simplify right side
    55,220.82x = 1,472,230,329.91
  5. Step 5: Solve for x
    x = 1,472,230,329.91/55,220.82
  6. Step 6: Final answer
    x = 26,660.78

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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.