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Finding the Fourth Proportional to 54,998.88, 82,512.90 and 19,943.70

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Solution

The fourth proportional to 54,998.88, 82,512.90 and 19,943.70 is: 29,920.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,998.88 : 82,512.90 = 19,943.70 : x
  2. Step 2: Convert to fraction form
    54,998.88/82,512.90 = 19,943.70/x
  3. Step 3: Cross multiply
    54,998.88x = 82,512.90 × 19,943.70
  4. Step 4: Simplify right side
    54,998.88x = 1,645,612,523.73
  5. Step 5: Solve for x
    x = 1,645,612,523.73/54,998.88
  6. Step 6: Final answer
    x = 29,920.84

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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.