Home / 81,403.90-122,105.85-22,245.55

Finding the Fourth Proportional to 81,403.90, 122,105.85 and 22,245.55

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Solution

The fourth proportional to 81,403.90, 122,105.85 and 22,245.55 is: 33,368.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,403.90 : 122,105.85 = 22,245.55 : x
  2. Step 2: Convert to fraction form
    81,403.90/122,105.85 = 22,245.55/x
  3. Step 3: Cross multiply
    81,403.90x = 122,105.85 × 22,245.55
  4. Step 4: Simplify right side
    81,403.90x = 2,716,311,791.47
  5. Step 5: Solve for x
    x = 2,716,311,791.47/81,403.90
  6. Step 6: Final answer
    x = 33,368.33

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Similar ratio
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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.