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Finding the Fourth Proportional to 43,880.80, 65,869.80 and 27,259.60

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Solution

The fourth proportional to 43,880.80, 65,869.80 and 27,259.60 is: 40,919.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,880.80 : 65,869.80 = 27,259.60 : x
  2. Step 2: Convert to fraction form
    43,880.80/65,869.80 = 27,259.60/x
  3. Step 3: Cross multiply
    43,880.80x = 65,869.80 × 27,259.60
  4. Step 4: Simplify right side
    43,880.80x = 1,795,584,400.08
  5. Step 5: Solve for x
    x = 1,795,584,400.08/43,880.80
  6. Step 6: Final answer
    x = 40,919.59

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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.