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Finding the Fourth Proportional to 81,755.44, 122,618.98 and 22,575.22

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Solution

The fourth proportional to 81,755.44, 122,618.98 and 22,575.22 is: 33,858.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,755.44 : 122,618.98 = 22,575.22 : x
  2. Step 2: Convert to fraction form
    81,755.44/122,618.98 = 22,575.22/x
  3. Step 3: Cross multiply
    81,755.44x = 122,618.98 × 22,575.22
  4. Step 4: Simplify right side
    81,755.44x = 2,768,150,171.35
  5. Step 5: Solve for x
    x = 2,768,150,171.35/81,755.44
  6. Step 6: Final answer
    x = 33,858.91

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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.