Home / 39,984-86,880

Finding the Third Proportional to 39,984 and 86,880

Calculator

Solution

The third proportional to 39,984 and 86,880 is: 188,778.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,984 : 86,880 = 86,880 : x
  2. Step 2: Convert to fraction form
    39,984/86,880 = 86,880/x
  3. Step 3: Cross multiply
    39,984x = 86,880 × 86,880
  4. Step 4: Simplify right side
    39,984x = 7,548,134,400
  5. Step 5: Solve for x
    x = 7,548,134,400/39,984
  6. Step 6: Final answer
    x = 188,778.87

Related Problems

Find third proportional to 19,992 and 43,440
Half scale
Find third proportional to 79,968 and 173,760
Double scale
Find third proportional to 39,986 and 86,884
Similar ratio
Find third proportional to 59,976 and 130,320
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.