Home / 62-80

Finding the Third Proportional to 62 and 80

Calculator

Solution

The third proportional to 62 and 80 is: 103.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    62 : 80 = 80 : x
  2. Step 2: Convert to fraction form
    62/80 = 80/x
  3. Step 3: Cross multiply
    62x = 80 × 80
  4. Step 4: Simplify right side
    62x = 6,400
  5. Step 5: Solve for x
    x = 6,400/62
  6. Step 6: Final answer
    x = 103.23

Related Problems

Find third proportional to 31 and 40
Half scale
Find third proportional to 124 and 160
Double scale
Find third proportional to 64 and 83
Similar ratio
Find third proportional to 93 and 120
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.29) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.