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Finding the Fourth Proportional to 80,908.80, 121,233.60 and 51,273.60

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Solution

The fourth proportional to 80,908.80, 121,233.60 and 51,273.60 is: 76,828.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,908.80 : 121,233.60 = 51,273.60 : x
  2. Step 2: Convert to fraction form
    80,908.80/121,233.60 = 51,273.60/x
  3. Step 3: Cross multiply
    80,908.80x = 121,233.60 × 51,273.60
  4. Step 4: Simplify right side
    80,908.80x = 6,216,083,112.96
  5. Step 5: Solve for x
    x = 6,216,083,112.96/80,908.80
  6. Step 6: Final answer
    x = 76,828.27

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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.