Home / 279,449.16-419,045.24-89,874.52

Finding the Fourth Proportional to 279,449.16, 419,045.24 and 89,874.52

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Solution

The fourth proportional to 279,449.16, 419,045.24 and 89,874.52 is: 134,770.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,449.16 : 419,045.24 = 89,874.52 : x
  2. Step 2: Convert to fraction form
    279,449.16/419,045.24 = 89,874.52/x
  3. Step 3: Cross multiply
    279,449.16x = 419,045.24 × 89,874.52
  4. Step 4: Simplify right side
    279,449.16x = 37,661,489,803.28
  5. Step 5: Solve for x
    x = 37,661,489,803.28/279,449.16
  6. Step 6: Final answer
    x = 134,770.45

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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.