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Finding the Fourth Proportional to 55,604.40, 83,414.70 and 18,166.20

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Solution

The fourth proportional to 55,604.40, 83,414.70 and 18,166.20 is: 27,251.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,604.40 : 83,414.70 = 18,166.20 : x
  2. Step 2: Convert to fraction form
    55,604.40/83,414.70 = 18,166.20/x
  3. Step 3: Cross multiply
    55,604.40x = 83,414.70 × 18,166.20
  4. Step 4: Simplify right side
    55,604.40x = 1,515,328,123.14
  5. Step 5: Solve for x
    x = 1,515,328,123.14/55,604.40
  6. Step 6: Final answer
    x = 27,251.95

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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.