Home / 86.26-129.27-50.14

Finding the Fourth Proportional to 86.26, 129.27 and 50.14

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Solution

The fourth proportional to 86.26, 129.27 and 50.14 is: 75.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    86.26 : 129.27 = 50.14 : x
  2. Step 2: Convert to fraction form
    86.26/129.27 = 50.14/x
  3. Step 3: Cross multiply
    86.26x = 129.27 × 50.14
  4. Step 4: Simplify right side
    86.26x = 6,481.60
  5. Step 5: Solve for x
    x = 6,481.60/86.26
  6. Step 6: Final answer
    x = 75.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.