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Finding the Fourth Proportional to 43,808.80, 65,761.80 and 27,187.60

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Solution

The fourth proportional to 43,808.80, 65,761.80 and 27,187.60 is: 40,811.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,808.80 : 65,761.80 = 27,187.60 : x
  2. Step 2: Convert to fraction form
    43,808.80/65,761.80 = 27,187.60/x
  3. Step 3: Cross multiply
    43,808.80x = 65,761.80 × 27,187.60
  4. Step 4: Simplify right side
    43,808.80x = 1,787,905,513.68
  5. Step 5: Solve for x
    x = 1,787,905,513.68/43,808.80
  6. Step 6: Final answer
    x = 40,811.56

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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.