Home / 87,969.55-121,414.23-50,243.80

Finding the Fourth Proportional to 87,969.55, 121,414.23 and 50,243.80

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Solution

The fourth proportional to 87,969.55, 121,414.23 and 50,243.80 is: 69,345.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,969.55 : 121,414.23 = 50,243.80 : x
  2. Step 2: Convert to fraction form
    87,969.55/121,414.23 = 50,243.80/x
  3. Step 3: Cross multiply
    87,969.55x = 121,414.23 × 50,243.80
  4. Step 4: Simplify right side
    87,969.55x = 6,100,312,289.27
  5. Step 5: Solve for x
    x = 6,100,312,289.27/87,969.55
  6. Step 6: Final answer
    x = 69,345.73

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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.