Home / 80,707.92-121,057.20-30,793.07

Finding the Fourth Proportional to 80,707.92, 121,057.20 and 30,793.07

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Solution

The fourth proportional to 80,707.92, 121,057.20 and 30,793.07 is: 46,187.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,707.92 : 121,057.20 = 30,793.07 : x
  2. Step 2: Convert to fraction form
    80,707.92/121,057.20 = 30,793.07/x
  3. Step 3: Cross multiply
    80,707.92x = 121,057.20 × 30,793.07
  4. Step 4: Simplify right side
    80,707.92x = 3,727,722,228.32
  5. Step 5: Solve for x
    x = 3,727,722,228.32/80,707.92
  6. Step 6: Final answer
    x = 46,187.81

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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.