Home / 39,986-86,884

Finding the Third Proportional to 39,986 and 86,884

Calculator

Solution

The third proportional to 39,986 and 86,884 is: 188,786.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,986 : 86,884 = 86,884 : x
  2. Step 2: Convert to fraction form
    39,986/86,884 = 86,884/x
  3. Step 3: Cross multiply
    39,986x = 86,884 × 86,884
  4. Step 4: Simplify right side
    39,986x = 7,548,829,456
  5. Step 5: Solve for x
    x = 7,548,829,456/39,986
  6. Step 6: Final answer
    x = 188,786.81

Related Problems

Find third proportional to 19,993 and 43,442
Half scale
Find third proportional to 79,972 and 173,768
Double scale
Find third proportional to 39,988 and 86,888
Similar ratio
Find third proportional to 59,979 and 130,326
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.