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Finding the Fourth Proportional to 54,125.82, 81,198.81 and 19,087.74

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Solution

The fourth proportional to 54,125.82, 81,198.81 and 19,087.74 is: 28,635.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,125.82 : 81,198.81 = 19,087.74 : x
  2. Step 2: Convert to fraction form
    54,125.82/81,198.81 = 19,087.74/x
  3. Step 3: Cross multiply
    54,125.82x = 81,198.81 × 19,087.74
  4. Step 4: Simplify right side
    54,125.82x = 1,549,901,773.59
  5. Step 5: Solve for x
    x = 1,549,901,773.59/54,125.82
  6. Step 6: Final answer
    x = 28,635.16

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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.