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Finding the Fourth Proportional to 81,375.56, 122,080.76 and 25,214.42

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Solution

The fourth proportional to 81,375.56, 122,080.76 and 25,214.42 is: 37,827.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,375.56 : 122,080.76 = 25,214.42 : x
  2. Step 2: Convert to fraction form
    81,375.56/122,080.76 = 25,214.42/x
  3. Step 3: Cross multiply
    81,375.56x = 122,080.76 × 25,214.42
  4. Step 4: Simplify right side
    81,375.56x = 3,078,195,556.56
  5. Step 5: Solve for x
    x = 3,078,195,556.56/81,375.56
  6. Step 6: Final answer
    x = 37,827.03

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1.5x scale

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.