Home / 279,447.16-419,042.24-89,872.53

Finding the Fourth Proportional to 279,447.16, 419,042.24 and 89,872.53

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Solution

The fourth proportional to 279,447.16, 419,042.24 and 89,872.53 is: 134,767.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,447.16 : 419,042.24 = 89,872.53 : x
  2. Step 2: Convert to fraction form
    279,447.16/419,042.24 = 89,872.53/x
  3. Step 3: Cross multiply
    279,447.16x = 419,042.24 × 89,872.53
  4. Step 4: Simplify right side
    279,447.16x = 37,660,384,190.46
  5. Step 5: Solve for x
    x = 37,660,384,190.46/279,447.16
  6. Step 6: Final answer
    x = 134,767.46

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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.