Home / 40,786-90,320

Finding the Third Proportional to 40,786 and 90,320

Calculator

Solution

The third proportional to 40,786 and 90,320 is: 200,012.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,786 : 90,320 = 90,320 : x
  2. Step 2: Convert to fraction form
    40,786/90,320 = 90,320/x
  3. Step 3: Cross multiply
    40,786x = 90,320 × 90,320
  4. Step 4: Simplify right side
    40,786x = 8,157,702,400
  5. Step 5: Solve for x
    x = 8,157,702,400/40,786
  6. Step 6: Final answer
    x = 200,012.32

Related Problems

Find third proportional to 20,393 and 45,160
Half scale
Find third proportional to 81,572 and 180,640
Double scale
Find third proportional to 40,788 and 90,324
Similar ratio
Find third proportional to 61,179 and 135,480
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.