Home / 81,375.31-122,080.38-25,214.17

Finding the Fourth Proportional to 81,375.31, 122,080.38 and 25,214.17

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Solution

The fourth proportional to 81,375.31, 122,080.38 and 25,214.17 is: 37,826.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,375.31 : 122,080.38 = 25,214.17 : x
  2. Step 2: Convert to fraction form
    81,375.31/122,080.38 = 25,214.17/x
  3. Step 3: Cross multiply
    81,375.31x = 122,080.38 × 25,214.17
  4. Step 4: Simplify right side
    81,375.31x = 3,078,155,454.98
  5. Step 5: Solve for x
    x = 3,078,155,454.98/81,375.31
  6. Step 6: Final answer
    x = 37,826.65

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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.