Home / 41-77

Finding the Third Proportional to 41 and 77

Calculator

Solution

The third proportional to 41 and 77 is: 144.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    41 : 77 = 77 : x
  2. Step 2: Convert to fraction form
    41/77 = 77/x
  3. Step 3: Cross multiply
    41x = 77 × 77
  4. Step 4: Simplify right side
    41x = 5,929
  5. Step 5: Solve for x
    x = 5,929/41
  6. Step 6: Final answer
    x = 144.61

Related Problems

Find third proportional to 20.50 and 38.50
Half scale
Find third proportional to 82 and 154
Double scale
Find third proportional to 43 and 81
Similar ratio
Find third proportional to 61.50 and 115.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.88) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.