Home / 43,890-62,720

Finding the Third Proportional to 43,890 and 62,720

Calculator

Solution

The third proportional to 43,890 and 62,720 is: 89,628.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,890 : 62,720 = 62,720 : x
  2. Step 2: Convert to fraction form
    43,890/62,720 = 62,720/x
  3. Step 3: Cross multiply
    43,890x = 62,720 × 62,720
  4. Step 4: Simplify right side
    43,890x = 3,933,798,400
  5. Step 5: Solve for x
    x = 3,933,798,400/43,890
  6. Step 6: Final answer
    x = 89,628.58

Related Problems

Find third proportional to 21,945 and 31,360
Half scale
Find third proportional to 87,780 and 125,440
Double scale
Find third proportional to 43,892 and 62,723
Similar ratio
Find third proportional to 65,835 and 94,080
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.