Home / 87,968.22-121,412.41-50,242.47

Finding the Fourth Proportional to 87,968.22, 121,412.41 and 50,242.47

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Solution

The fourth proportional to 87,968.22, 121,412.41 and 50,242.47 is: 69,343.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,968.22 : 121,412.41 = 50,242.47 : x
  2. Step 2: Convert to fraction form
    87,968.22/121,412.41 = 50,242.47/x
  3. Step 3: Cross multiply
    87,968.22x = 121,412.41 × 50,242.47
  4. Step 4: Simplify right side
    87,968.22x = 6,100,059,367.05
  5. Step 5: Solve for x
    x = 6,100,059,367.05/87,968.22
  6. Step 6: Final answer
    x = 69,343.90

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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.