Home / 39,855-86,718

Finding the Third Proportional to 39,855 and 86,718

Calculator

Solution

The third proportional to 39,855 and 86,718 is: 188,684.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,855 : 86,718 = 86,718 : x
  2. Step 2: Convert to fraction form
    39,855/86,718 = 86,718/x
  3. Step 3: Cross multiply
    39,855x = 86,718 × 86,718
  4. Step 4: Simplify right side
    39,855x = 7,520,011,524
  5. Step 5: Solve for x
    x = 7,520,011,524/39,855
  6. Step 6: Final answer
    x = 188,684.27

Related Problems

Find third proportional to 19,927.50 and 43,359
Half scale
Find third proportional to 79,710 and 173,436
Double scale
Find third proportional to 39,857 and 86,722
Similar ratio
Find third proportional to 59,782.50 and 130,077
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.