Home / 81,576.14-112,625.49-54,390.47

Finding the Fourth Proportional to 81,576.14, 112,625.49 and 54,390.47

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Solution

The fourth proportional to 81,576.14, 112,625.49 and 54,390.47 is: 75,092.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,576.14 : 112,625.49 = 54,390.47 : x
  2. Step 2: Convert to fraction form
    81,576.14/112,625.49 = 54,390.47/x
  3. Step 3: Cross multiply
    81,576.14x = 112,625.49 × 54,390.47
  4. Step 4: Simplify right side
    81,576.14x = 6,125,753,335.08
  5. Step 5: Solve for x
    x = 6,125,753,335.08/81,576.14
  6. Step 6: Final answer
    x = 75,092.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.