Home / 26.72-56.81

Finding the Third Proportional to 26.72 and 56.81

Calculator

Solution

The third proportional to 26.72 and 56.81 is: 120.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    26.72 : 56.81 = 56.81 : x
  2. Step 2: Convert to fraction form
    26.72/56.81 = 56.81/x
  3. Step 3: Cross multiply
    26.72x = 56.81 × 56.81
  4. Step 4: Simplify right side
    26.72x = 3,227.66
  5. Step 5: Solve for x
    x = 3,227.66/26.72
  6. Step 6: Final answer
    x = 120.80

Related Problems

Find third proportional to 13.36 and 28.41
Half scale
Find third proportional to 53.44 and 113.63
Double scale
Find third proportional to 29 and 61
Similar ratio
Find third proportional to 40.08 and 85.22
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.