Home / 67-81.25

Finding the Third Proportional to 67 and 81.25

Calculator

Solution

The third proportional to 67 and 81.25 is: 98.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    67 : 81.25 = 81.25 : x
  2. Step 2: Convert to fraction form
    67/81.25 = 81.25/x
  3. Step 3: Cross multiply
    67x = 81.25 × 81.25
  4. Step 4: Simplify right side
    67x = 6,601.56
  5. Step 5: Solve for x
    x = 6,601.56/67
  6. Step 6: Final answer
    x = 98.53

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.