Home / 80,764.96-121,121.56-26,719.60

Finding the Fourth Proportional to 80,764.96, 121,121.56 and 26,719.60

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Solution

The fourth proportional to 80,764.96, 121,121.56 and 26,719.60 is: 40,070.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,764.96 : 121,121.56 = 26,719.60 : x
  2. Step 2: Convert to fraction form
    80,764.96/121,121.56 = 26,719.60/x
  3. Step 3: Cross multiply
    80,764.96x = 121,121.56 × 26,719.60
  4. Step 4: Simplify right side
    80,764.96x = 3,236,319,634.58
  5. Step 5: Solve for x
    x = 3,236,319,634.58/80,764.96
  6. Step 6: Final answer
    x = 40,070.84

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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.