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Finding the Fourth Proportional to 43,772.87, 65,660.22 and 14,190.66

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Solution

The fourth proportional to 43,772.87, 65,660.22 and 14,190.66 is: 21,286.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,772.87 : 65,660.22 = 14,190.66 : x
  2. Step 2: Convert to fraction form
    43,772.87/65,660.22 = 14,190.66/x
  3. Step 3: Cross multiply
    43,772.87x = 65,660.22 × 14,190.66
  4. Step 4: Simplify right side
    43,772.87x = 931,761,857.55
  5. Step 5: Solve for x
    x = 931,761,857.55/43,772.87
  6. Step 6: Final answer
    x = 21,286.29

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.