Home / 39,729-82,694

Finding the Third Proportional to 39,729 and 82,694

Calculator

Solution

The third proportional to 39,729 and 82,694 is: 172,123.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,729 : 82,694 = 82,694 : x
  2. Step 2: Convert to fraction form
    39,729/82,694 = 82,694/x
  3. Step 3: Cross multiply
    39,729x = 82,694 × 82,694
  4. Step 4: Simplify right side
    39,729x = 6,838,297,636
  5. Step 5: Solve for x
    x = 6,838,297,636/39,729
  6. Step 6: Final answer
    x = 172,123.58

Related Problems

Find third proportional to 19,864.50 and 41,347
Half scale
Find third proportional to 79,458 and 165,388
Double scale
Find third proportional to 39,731 and 82,698
Similar ratio
Find third proportional to 59,593.50 and 124,041
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.