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Finding the Fourth Proportional to 54,053.88, 81,080.82 and 17,115

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Solution

The fourth proportional to 54,053.88, 81,080.82 and 17,115 is: 25,672.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,053.88 : 81,080.82 = 17,115 : x
  2. Step 2: Convert to fraction form
    54,053.88/81,080.82 = 17,115/x
  3. Step 3: Cross multiply
    54,053.88x = 81,080.82 × 17,115
  4. Step 4: Simplify right side
    54,053.88x = 1,387,698,234.30
  5. Step 5: Solve for x
    x = 1,387,698,234.30/54,053.88
  6. Step 6: Final answer
    x = 25,672.50

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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.