Home / 39,930-86,943

Finding the Third Proportional to 39,930 and 86,943

Calculator

Solution

The third proportional to 39,930 and 86,943 is: 189,308.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,930 : 86,943 = 86,943 : x
  2. Step 2: Convert to fraction form
    39,930/86,943 = 86,943/x
  3. Step 3: Cross multiply
    39,930x = 86,943 × 86,943
  4. Step 4: Simplify right side
    39,930x = 7,559,085,249
  5. Step 5: Solve for x
    x = 7,559,085,249/39,930
  6. Step 6: Final answer
    x = 189,308.42

Related Problems

Find third proportional to 19,965 and 43,471.50
Half scale
Find third proportional to 79,860 and 173,886
Double scale
Find third proportional to 39,932 and 86,947
Similar ratio
Find third proportional to 59,895 and 130,414.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.