Home / 31,452-67,720

Finding the Third Proportional to 31,452 and 67,720

Calculator

Solution

The third proportional to 31,452 and 67,720 is: 145,809.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,452 : 67,720 = 67,720 : x
  2. Step 2: Convert to fraction form
    31,452/67,720 = 67,720/x
  3. Step 3: Cross multiply
    31,452x = 67,720 × 67,720
  4. Step 4: Simplify right side
    31,452x = 4,585,998,400
  5. Step 5: Solve for x
    x = 4,585,998,400/31,452
  6. Step 6: Final answer
    x = 145,809.44

Related Problems

Find third proportional to 15,726 and 33,860
Half scale
Find third proportional to 62,904 and 135,440
Double scale
Find third proportional to 31,454 and 67,724
Similar ratio
Find third proportional to 47,178 and 101,580
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.