Home / 81,740.97-122,567.00-25,556.85

Finding the Fourth Proportional to 81,740.97, 122,567.00 and 25,556.85

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Solution

The fourth proportional to 81,740.97, 122,567.00 and 25,556.85 is: 38,321.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,740.97 : 122,567.00 = 25,556.85 : x
  2. Step 2: Convert to fraction form
    81,740.97/122,567.00 = 25,556.85/x
  3. Step 3: Cross multiply
    81,740.97x = 122,567.00 × 25,556.85
  4. Step 4: Simplify right side
    81,740.97x = 3,132,426,306.17
  5. Step 5: Solve for x
    x = 3,132,426,306.17/81,740.97
  6. Step 6: Final answer
    x = 38,321.37

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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.