Home / 39,882-81,813

Finding the Third Proportional to 39,882 and 81,813

Calculator

Solution

The third proportional to 39,882 and 81,813 is: 167,829.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,882 : 81,813 = 81,813 : x
  2. Step 2: Convert to fraction form
    39,882/81,813 = 81,813/x
  3. Step 3: Cross multiply
    39,882x = 81,813 × 81,813
  4. Step 4: Simplify right side
    39,882x = 6,693,366,969
  5. Step 5: Solve for x
    x = 6,693,366,969/39,882
  6. Step 6: Final answer
    x = 167,829.27

Related Problems

Find third proportional to 19,941 and 40,906.50
Half scale
Find third proportional to 79,764 and 163,626
Double scale
Find third proportional to 39,884 and 81,817
Similar ratio
Find third proportional to 59,823 and 122,719.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.