Home / 87,910.11-121,324.64-50,190.03

Finding the Fourth Proportional to 87,910.11, 121,324.64 and 50,190.03

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Solution

The fourth proportional to 87,910.11, 121,324.64 and 50,190.03 is: 69,267.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,910.11 : 121,324.64 = 50,190.03 : x
  2. Step 2: Convert to fraction form
    87,910.11/121,324.64 = 50,190.03/x
  3. Step 3: Cross multiply
    87,910.11x = 121,324.64 × 50,190.03
  4. Step 4: Simplify right side
    87,910.11x = 6,089,287,070.39
  5. Step 5: Solve for x
    x = 6,089,287,070.39/87,910.11
  6. Step 6: Final answer
    x = 69,267.20

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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.