Home / 279,375.28-419,076.76-79,725.10

Finding the Fourth Proportional to 279,375.28, 419,076.76 and 79,725.10

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Solution

The fourth proportional to 279,375.28, 419,076.76 and 79,725.10 is: 119,591.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,375.28 : 419,076.76 = 79,725.10 : x
  2. Step 2: Convert to fraction form
    279,375.28/419,076.76 = 79,725.10/x
  3. Step 3: Cross multiply
    279,375.28x = 419,076.76 × 79,725.10
  4. Step 4: Simplify right side
    279,375.28x = 33,410,936,598.68
  5. Step 5: Solve for x
    x = 33,410,936,598.68/279,375.28
  6. Step 6: Final answer
    x = 119,591.60

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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.