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Finding the Fourth Proportional to 54,099.88, 81,149.82 and 17,161

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Solution

The fourth proportional to 54,099.88, 81,149.82 and 17,161 is: 25,741.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,099.88 : 81,149.82 = 17,161 : x
  2. Step 2: Convert to fraction form
    54,099.88/81,149.82 = 17,161/x
  3. Step 3: Cross multiply
    54,099.88x = 81,149.82 × 17,161
  4. Step 4: Simplify right side
    54,099.88x = 1,392,612,061.02
  5. Step 5: Solve for x
    x = 1,392,612,061.02/54,099.88
  6. Step 6: Final answer
    x = 25,741.50

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Double scale
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Similar ratio
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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.