Home / 83,921.53-125,882.30-28,517.53

Finding the Fourth Proportional to 83,921.53, 125,882.30 and 28,517.53

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Solution

The fourth proportional to 83,921.53, 125,882.30 and 28,517.53 is: 42,776.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,921.53 : 125,882.30 = 28,517.53 : x
  2. Step 2: Convert to fraction form
    83,921.53/125,882.30 = 28,517.53/x
  3. Step 3: Cross multiply
    83,921.53x = 125,882.30 × 28,517.53
  4. Step 4: Simplify right side
    83,921.53x = 3,589,852,266.72
  5. Step 5: Solve for x
    x = 3,589,852,266.72/83,921.53
  6. Step 6: Final answer
    x = 42,776.30

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1.5x scale

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.