Home / 39,742-81,306

Finding the Third Proportional to 39,742 and 81,306

Calculator

Solution

The third proportional to 39,742 and 81,306 is: 166,339.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,742 : 81,306 = 81,306 : x
  2. Step 2: Convert to fraction form
    39,742/81,306 = 81,306/x
  3. Step 3: Cross multiply
    39,742x = 81,306 × 81,306
  4. Step 4: Simplify right side
    39,742x = 6,610,665,636
  5. Step 5: Solve for x
    x = 6,610,665,636/39,742
  6. Step 6: Final answer
    x = 166,339.53

Related Problems

Find third proportional to 19,871 and 40,653
Half scale
Find third proportional to 79,484 and 162,612
Double scale
Find third proportional to 39,744 and 81,310
Similar ratio
Find third proportional to 59,613 and 121,959
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.