Home / 39,972-86,170

Finding the Third Proportional to 39,972 and 86,170

Calculator

Solution

The third proportional to 39,972 and 86,170 is: 185,761.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,972 : 86,170 = 86,170 : x
  2. Step 2: Convert to fraction form
    39,972/86,170 = 86,170/x
  3. Step 3: Cross multiply
    39,972x = 86,170 × 86,170
  4. Step 4: Simplify right side
    39,972x = 7,425,268,900
  5. Step 5: Solve for x
    x = 7,425,268,900/39,972
  6. Step 6: Final answer
    x = 185,761.76

Related Problems

Find third proportional to 19,986 and 43,085
Half scale
Find third proportional to 79,944 and 172,340
Double scale
Find third proportional to 39,974 and 86,174
Similar ratio
Find third proportional to 59,958 and 129,255
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.