Home / 43,115.20-64,672.80-40,004.80

Finding the Fourth Proportional to 43,115.20, 64,672.80 and 40,004.80

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Solution

The fourth proportional to 43,115.20, 64,672.80 and 40,004.80 is: 60,007.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,115.20 : 64,672.80 = 40,004.80 : x
  2. Step 2: Convert to fraction form
    43,115.20/64,672.80 = 40,004.80/x
  3. Step 3: Cross multiply
    43,115.20x = 64,672.80 × 40,004.80
  4. Step 4: Simplify right side
    43,115.20x = 2,587,222,429.44
  5. Step 5: Solve for x
    x = 2,587,222,429.44/43,115.20
  6. Step 6: Final answer
    x = 60,007.20

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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.