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Finding the Fourth Proportional to 54,340.44, 81,522.39 and 16,899.78

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Solution

The fourth proportional to 54,340.44, 81,522.39 and 16,899.78 is: 25,353.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,340.44 : 81,522.39 = 16,899.78 : x
  2. Step 2: Convert to fraction form
    54,340.44/81,522.39 = 16,899.78/x
  3. Step 3: Cross multiply
    54,340.44x = 81,522.39 × 16,899.78
  4. Step 4: Simplify right side
    54,340.44x = 1,377,710,456.07
  5. Step 5: Solve for x
    x = 1,377,710,456.07/54,340.44
  6. Step 6: Final answer
    x = 25,353.32

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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.