Home / 39,378-85,668

Finding the Third Proportional to 39,378 and 85,668

Calculator

Solution

The third proportional to 39,378 and 85,668 is: 186,373.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,378 : 85,668 = 85,668 : x
  2. Step 2: Convert to fraction form
    39,378/85,668 = 85,668/x
  3. Step 3: Cross multiply
    39,378x = 85,668 × 85,668
  4. Step 4: Simplify right side
    39,378x = 7,339,006,224
  5. Step 5: Solve for x
    x = 7,339,006,224/39,378
  6. Step 6: Final answer
    x = 186,373.26

Related Problems

Find third proportional to 19,689 and 42,834
Half scale
Find third proportional to 78,756 and 171,336
Double scale
Find third proportional to 39,380 and 85,672
Similar ratio
Find third proportional to 59,067 and 128,502
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.