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Finding the Fourth Proportional to 54,053.98, 81,076.97 and 18,993.98

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Solution

The fourth proportional to 54,053.98, 81,076.97 and 18,993.98 is: 28,489.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,053.98 : 81,076.97 = 18,993.98 : x
  2. Step 2: Convert to fraction form
    54,053.98/81,076.97 = 18,993.98/x
  3. Step 3: Cross multiply
    54,053.98x = 81,076.97 × 18,993.98
  4. Step 4: Simplify right side
    54,053.98x = 1,539,974,346.64
  5. Step 5: Solve for x
    x = 1,539,974,346.64/54,053.98
  6. Step 6: Final answer
    x = 28,489.56

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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.