Home / 83,454.82-125,181.07-20,275.38

Finding the Fourth Proportional to 83,454.82, 125,181.07 and 20,275.38

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Solution

The fourth proportional to 83,454.82, 125,181.07 and 20,275.38 is: 30,412.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,454.82 : 125,181.07 = 20,275.38 : x
  2. Step 2: Convert to fraction form
    83,454.82/125,181.07 = 20,275.38/x
  3. Step 3: Cross multiply
    83,454.82x = 125,181.07 × 20,275.38
  4. Step 4: Simplify right side
    83,454.82x = 2,538,093,763.06
  5. Step 5: Solve for x
    x = 2,538,093,763.06/83,454.82
  6. Step 6: Final answer
    x = 30,412.79

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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.