Home / 81,350.88-122,013.78-22,191.36

Finding the Fourth Proportional to 81,350.88, 122,013.78 and 22,191.36

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Solution

The fourth proportional to 81,350.88, 122,013.78 and 22,191.36 is: 33,283.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,350.88 : 122,013.78 = 22,191.36 : x
  2. Step 2: Convert to fraction form
    81,350.88/122,013.78 = 22,191.36/x
  3. Step 3: Cross multiply
    81,350.88x = 122,013.78 × 22,191.36
  4. Step 4: Simplify right side
    81,350.88x = 2,707,651,716.94
  5. Step 5: Solve for x
    x = 2,707,651,716.94/81,350.88
  6. Step 6: Final answer
    x = 33,283.62

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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.