Home / 87,969.56-121,414.24-50,243.80

Finding the Fourth Proportional to 87,969.56, 121,414.24 and 50,243.80

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Solution

The fourth proportional to 87,969.56, 121,414.24 and 50,243.80 is: 69,345.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,969.56 : 121,414.24 = 50,243.80 : x
  2. Step 2: Convert to fraction form
    87,969.56/121,414.24 = 50,243.80/x
  3. Step 3: Cross multiply
    87,969.56x = 121,414.24 × 50,243.80
  4. Step 4: Simplify right side
    87,969.56x = 6,100,312,791.71
  5. Step 5: Solve for x
    x = 6,100,312,791.71/87,969.56
  6. Step 6: Final answer
    x = 69,345.72

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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.