Home / 71-75.75

Finding the Third Proportional to 71 and 75.75

Calculator

Solution

The third proportional to 71 and 75.75 is: 80.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    71 : 75.75 = 75.75 : x
  2. Step 2: Convert to fraction form
    71/75.75 = 75.75/x
  3. Step 3: Cross multiply
    71x = 75.75 × 75.75
  4. Step 4: Simplify right side
    71x = 5,738.06
  5. Step 5: Solve for x
    x = 5,738.06/71
  6. Step 6: Final answer
    x = 80.82

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.