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Finding the Fourth Proportional to 67,344.80, 100,968.60 and 43,984.40

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Solution

The fourth proportional to 67,344.80, 100,968.60 and 43,984.40 is: 65,944.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,344.80 : 100,968.60 = 43,984.40 : x
  2. Step 2: Convert to fraction form
    67,344.80/100,968.60 = 43,984.40/x
  3. Step 3: Cross multiply
    67,344.80x = 100,968.60 × 43,984.40
  4. Step 4: Simplify right side
    67,344.80x = 4,441,043,289.84
  5. Step 5: Solve for x
    x = 4,441,043,289.84/67,344.80
  6. Step 6: Final answer
    x = 65,944.86

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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.