Home / 279,800.20-419,577.06-80,075.14

Finding the Fourth Proportional to 279,800.20, 419,577.06 and 80,075.14

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Solution

The fourth proportional to 279,800.20, 419,577.06 and 80,075.14 is: 120,077.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,800.20 : 419,577.06 = 80,075.14 : x
  2. Step 2: Convert to fraction form
    279,800.20/419,577.06 = 80,075.14/x
  3. Step 3: Cross multiply
    279,800.20x = 419,577.06 × 80,075.14
  4. Step 4: Simplify right side
    279,800.20x = 33,597,691,820.29
  5. Step 5: Solve for x
    x = 33,597,691,820.29/279,800.20
  6. Step 6: Final answer
    x = 120,077.44

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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.