Home / 38,900-81,952

Finding the Third Proportional to 38,900 and 81,952

Calculator

Solution

The third proportional to 38,900 and 81,952 is: 172,651.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,900 : 81,952 = 81,952 : x
  2. Step 2: Convert to fraction form
    38,900/81,952 = 81,952/x
  3. Step 3: Cross multiply
    38,900x = 81,952 × 81,952
  4. Step 4: Simplify right side
    38,900x = 6,716,130,304
  5. Step 5: Solve for x
    x = 6,716,130,304/38,900
  6. Step 6: Final answer
    x = 172,651.16

Related Problems

Find third proportional to 19,450 and 40,976
Half scale
Find third proportional to 77,800 and 163,904
Double scale
Find third proportional to 38,902 and 81,956
Similar ratio
Find third proportional to 58,350 and 122,928
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.