Home / 81,414.48-122,140.80-25,251.72

Finding the Fourth Proportional to 81,414.48, 122,140.80 and 25,251.72

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Solution

The fourth proportional to 81,414.48, 122,140.80 and 25,251.72 is: 37,883.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,414.48 : 122,140.80 = 25,251.72 : x
  2. Step 2: Convert to fraction form
    81,414.48/122,140.80 = 25,251.72/x
  3. Step 3: Cross multiply
    81,414.48x = 122,140.80 × 25,251.72
  4. Step 4: Simplify right side
    81,414.48x = 3,084,265,282.18
  5. Step 5: Solve for x
    x = 3,084,265,282.18/81,414.48
  6. Step 6: Final answer
    x = 37,883.50

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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.