Home / 279,799.20-419,575.56-80,074.14

Finding the Fourth Proportional to 279,799.20, 419,575.56 and 80,074.14

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Solution

The fourth proportional to 279,799.20, 419,575.56 and 80,074.14 is: 120,075.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,799.20 : 419,575.56 = 80,074.14 : x
  2. Step 2: Convert to fraction form
    279,799.20/419,575.56 = 80,074.14/x
  3. Step 3: Cross multiply
    279,799.20x = 419,575.56 × 80,074.14
  4. Step 4: Simplify right side
    279,799.20x = 33,597,152,132.02
  5. Step 5: Solve for x
    x = 33,597,152,132.02/279,799.20
  6. Step 6: Final answer
    x = 120,075.94

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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.