Home / 81,074.97-121,599.98-27,040.61

Finding the Fourth Proportional to 81,074.97, 121,599.98 and 27,040.61

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Solution

The fourth proportional to 81,074.97, 121,599.98 and 27,040.61 is: 40,556.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,074.97 : 121,599.98 = 27,040.61 : x
  2. Step 2: Convert to fraction form
    81,074.97/121,599.98 = 27,040.61/x
  3. Step 3: Cross multiply
    81,074.97x = 121,599.98 × 27,040.61
  4. Step 4: Simplify right side
    81,074.97x = 3,288,136,993.39
  5. Step 5: Solve for x
    x = 3,288,136,993.39/81,074.97
  6. Step 6: Final answer
    x = 40,556.75

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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.