Home / 39,926-86,940

Finding the Third Proportional to 39,926 and 86,940

Calculator

Solution

The third proportional to 39,926 and 86,940 is: 189,314.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,926 : 86,940 = 86,940 : x
  2. Step 2: Convert to fraction form
    39,926/86,940 = 86,940/x
  3. Step 3: Cross multiply
    39,926x = 86,940 × 86,940
  4. Step 4: Simplify right side
    39,926x = 7,558,563,600
  5. Step 5: Solve for x
    x = 7,558,563,600/39,926
  6. Step 6: Final answer
    x = 189,314.32

Related Problems

Find third proportional to 19,963 and 43,470
Half scale
Find third proportional to 79,852 and 173,880
Double scale
Find third proportional to 39,928 and 86,944
Similar ratio
Find third proportional to 59,889 and 130,410
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.