Home / 81,731.88-122,563.26-25,556.94

Finding the Fourth Proportional to 81,731.88, 122,563.26 and 25,556.94

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Solution

The fourth proportional to 81,731.88, 122,563.26 and 25,556.94 is: 38,324.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,731.88 : 122,563.26 = 25,556.94 : x
  2. Step 2: Convert to fraction form
    81,731.88/122,563.26 = 25,556.94/x
  3. Step 3: Cross multiply
    81,731.88x = 122,563.26 × 25,556.94
  4. Step 4: Simplify right side
    81,731.88x = 3,132,341,882.02
  5. Step 5: Solve for x
    x = 3,132,341,882.02/81,731.88
  6. Step 6: Final answer
    x = 38,324.60

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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.