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Finding the Fourth Proportional to 81,093.60, 121,591.80 and 41,727.60

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Solution

The fourth proportional to 81,093.60, 121,591.80 and 41,727.60 is: 62,566.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,093.60 : 121,591.80 = 41,727.60 : x
  2. Step 2: Convert to fraction form
    81,093.60/121,591.80 = 41,727.60/x
  3. Step 3: Cross multiply
    81,093.60x = 121,591.80 × 41,727.60
  4. Step 4: Simplify right side
    81,093.60x = 5,073,733,993.68
  5. Step 5: Solve for x
    x = 5,073,733,993.68/81,093.60
  6. Step 6: Final answer
    x = 62,566.39

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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.