Home / 43,179.87-64,772.13-13,600.02

Finding the Fourth Proportional to 43,179.87, 64,772.13 and 13,600.02

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Solution

The fourth proportional to 43,179.87, 64,772.13 and 13,600.02 is: 20,400.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,179.87 : 64,772.13 = 13,600.02 : x
  2. Step 2: Convert to fraction form
    43,179.87/64,772.13 = 13,600.02/x
  3. Step 3: Cross multiply
    43,179.87x = 64,772.13 × 13,600.02
  4. Step 4: Simplify right side
    43,179.87x = 880,902,229.44
  5. Step 5: Solve for x
    x = 880,902,229.44/43,179.87
  6. Step 6: Final answer
    x = 20,400.76

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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.