Home / 80,734.54-121,121.26-25,330.54

Finding the Fourth Proportional to 80,734.54, 121,121.26 and 25,330.54

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Solution

The fourth proportional to 80,734.54, 121,121.26 and 25,330.54 is: 38,001.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,734.54 : 121,121.26 = 25,330.54 : x
  2. Step 2: Convert to fraction form
    80,734.54/121,121.26 = 25,330.54/x
  3. Step 3: Cross multiply
    80,734.54x = 121,121.26 × 25,330.54
  4. Step 4: Simplify right side
    80,734.54x = 3,068,066,921.28
  5. Step 5: Solve for x
    x = 3,068,066,921.28/80,734.54
  6. Step 6: Final answer
    x = 38,001.91

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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.