Home / 81,414.74-122,139.64-25,253.72

Finding the Fourth Proportional to 81,414.74, 122,139.64 and 25,253.72

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Solution

The fourth proportional to 81,414.74, 122,139.64 and 25,253.72 is: 37,886.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,414.74 : 122,139.64 = 25,253.72 : x
  2. Step 2: Convert to fraction form
    81,414.74/122,139.64 = 25,253.72/x
  3. Step 3: Cross multiply
    81,414.74x = 122,139.64 × 25,253.72
  4. Step 4: Simplify right side
    81,414.74x = 3,084,480,269.46
  5. Step 5: Solve for x
    x = 3,084,480,269.46/81,414.74
  6. Step 6: Final answer
    x = 37,886.02

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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.