Home / 39,706-82,679

Finding the Third Proportional to 39,706 and 82,679

Calculator

Solution

The third proportional to 39,706 and 82,679 is: 172,160.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,706 : 82,679 = 82,679 : x
  2. Step 2: Convert to fraction form
    39,706/82,679 = 82,679/x
  3. Step 3: Cross multiply
    39,706x = 82,679 × 82,679
  4. Step 4: Simplify right side
    39,706x = 6,835,817,041
  5. Step 5: Solve for x
    x = 6,835,817,041/39,706
  6. Step 6: Final answer
    x = 172,160.81

Related Problems

Find third proportional to 19,853 and 41,339.50
Half scale
Find third proportional to 79,412 and 165,358
Double scale
Find third proportional to 39,708 and 82,683
Similar ratio
Find third proportional to 59,559 and 124,018.50
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.