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Finding the Fourth Proportional to 54,745.71, 82,118.39 and 13,192.71

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Solution

The fourth proportional to 54,745.71, 82,118.39 and 13,192.71 is: 19,789.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,745.71 : 82,118.39 = 13,192.71 : x
  2. Step 2: Convert to fraction form
    54,745.71/82,118.39 = 13,192.71/x
  3. Step 3: Cross multiply
    54,745.71x = 82,118.39 × 13,192.71
  4. Step 4: Simplify right side
    54,745.71x = 1,083,364,038.97
  5. Step 5: Solve for x
    x = 1,083,364,038.97/54,745.71
  6. Step 6: Final answer
    x = 19,789.02

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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.