Home / 80,736.60-121,066.02-28,144.92

Finding the Fourth Proportional to 80,736.60, 121,066.02 and 28,144.92

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Solution

The fourth proportional to 80,736.60, 121,066.02 and 28,144.92 is: 42,203.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,736.60 : 121,066.02 = 28,144.92 : x
  2. Step 2: Convert to fraction form
    80,736.60/121,066.02 = 28,144.92/x
  3. Step 3: Cross multiply
    80,736.60x = 121,066.02 × 28,144.92
  4. Step 4: Simplify right side
    80,736.60x = 3,407,393,447.62
  5. Step 5: Solve for x
    x = 3,407,393,447.62/80,736.60
  6. Step 6: Final answer
    x = 42,203.83

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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.