Home / 87,918-121,326.92-50,191.44

Finding the Fourth Proportional to 87,918, 121,326.92 and 50,191.44

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Solution

The fourth proportional to 87,918, 121,326.92 and 50,191.44 is: 69,264.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,918 : 121,326.92 = 50,191.44 : x
  2. Step 2: Convert to fraction form
    87,918/121,326.92 = 50,191.44/x
  3. Step 3: Cross multiply
    87,918x = 121,326.92 × 50,191.44
  4. Step 4: Simplify right side
    87,918x = 6,089,572,825.56
  5. Step 5: Solve for x
    x = 6,089,572,825.56/87,918
  6. Step 6: Final answer
    x = 69,264.23

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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.