Home / 39,864-87,008

Finding the Third Proportional to 39,864 and 87,008

Calculator

Solution

The third proportional to 39,864 and 87,008 is: 189,905.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,864 : 87,008 = 87,008 : x
  2. Step 2: Convert to fraction form
    39,864/87,008 = 87,008/x
  3. Step 3: Cross multiply
    39,864x = 87,008 × 87,008
  4. Step 4: Simplify right side
    39,864x = 7,570,392,064
  5. Step 5: Solve for x
    x = 7,570,392,064/39,864
  6. Step 6: Final answer
    x = 189,905.48

Related Problems

Find third proportional to 19,932 and 43,504
Half scale
Find third proportional to 79,728 and 174,016
Double scale
Find third proportional to 39,866 and 87,012
Similar ratio
Find third proportional to 59,796 and 130,512
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.