Home / 87,969.54-121,414.22-50,243.79

Finding the Fourth Proportional to 87,969.54, 121,414.22 and 50,243.79

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Solution

The fourth proportional to 87,969.54, 121,414.22 and 50,243.79 is: 69,345.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,969.54 : 121,414.22 = 50,243.79 : x
  2. Step 2: Convert to fraction form
    87,969.54/121,414.22 = 50,243.79/x
  3. Step 3: Cross multiply
    87,969.54x = 121,414.22 × 50,243.79
  4. Step 4: Simplify right side
    87,969.54x = 6,100,310,572.69
  5. Step 5: Solve for x
    x = 6,100,310,572.69/87,969.54
  6. Step 6: Final answer
    x = 69,345.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.