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Finding the Fourth Proportional to 43,996.80, 65,803.20 and 39,350.40

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Solution

The fourth proportional to 43,996.80, 65,803.20 and 39,350.40 is: 58,853.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,996.80 : 65,803.20 = 39,350.40 : x
  2. Step 2: Convert to fraction form
    43,996.80/65,803.20 = 39,350.40/x
  3. Step 3: Cross multiply
    43,996.80x = 65,803.20 × 39,350.40
  4. Step 4: Simplify right side
    43,996.80x = 2,589,382,241.28
  5. Step 5: Solve for x
    x = 2,589,382,241.28/43,996.80
  6. Step 6: Final answer
    x = 58,853.88

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1.5x scale

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.