Home / 36-72.38

Finding the Third Proportional to 36 and 72.38

Calculator

Solution

The third proportional to 36 and 72.38 is: 145.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    36 : 72.38 = 72.38 : x
  2. Step 2: Convert to fraction form
    36/72.38 = 72.38/x
  3. Step 3: Cross multiply
    36x = 72.38 × 72.38
  4. Step 4: Simplify right side
    36x = 5,238.14
  5. Step 5: Solve for x
    x = 5,238.14/36
  6. Step 6: Final answer
    x = 145.50

Related Problems

Find third proportional to 18 and 36.19
Half scale
Find third proportional to 72 and 144.75
Double scale
Find third proportional to 38 and 76
Similar ratio
Find third proportional to 54 and 108.56
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.01) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.