Home / 83,414.08-125,121.92-21,084.56

Finding the Fourth Proportional to 83,414.08, 125,121.92 and 21,084.56

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Solution

The fourth proportional to 83,414.08, 125,121.92 and 21,084.56 is: 31,627.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,414.08 : 125,121.92 = 21,084.56 : x
  2. Step 2: Convert to fraction form
    83,414.08/125,121.92 = 21,084.56/x
  3. Step 3: Cross multiply
    83,414.08x = 125,121.92 × 21,084.56
  4. Step 4: Simplify right side
    83,414.08x = 2,638,140,629.56
  5. Step 5: Solve for x
    x = 2,638,140,629.56/83,414.08
  6. Step 6: Final answer
    x = 31,627.04

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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.