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Finding the Fourth Proportional to 81,207.59, 121,824.52 and 25,034.56

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Solution

The fourth proportional to 81,207.59, 121,824.52 and 25,034.56 is: 37,555.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,207.59 : 121,824.52 = 25,034.56 : x
  2. Step 2: Convert to fraction form
    81,207.59/121,824.52 = 25,034.56/x
  3. Step 3: Cross multiply
    81,207.59x = 121,824.52 × 25,034.56
  4. Step 4: Simplify right side
    81,207.59x = 3,049,822,646.29
  5. Step 5: Solve for x
    x = 3,049,822,646.29/81,207.59
  6. Step 6: Final answer
    x = 37,555.88

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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.