Home / 43,140-68,871

Finding the Third Proportional to 43,140 and 68,871

Calculator

Solution

The third proportional to 43,140 and 68,871 is: 109,949.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,140 : 68,871 = 68,871 : x
  2. Step 2: Convert to fraction form
    43,140/68,871 = 68,871/x
  3. Step 3: Cross multiply
    43,140x = 68,871 × 68,871
  4. Step 4: Simplify right side
    43,140x = 4,743,214,641
  5. Step 5: Solve for x
    x = 4,743,214,641/43,140
  6. Step 6: Final answer
    x = 109,949.34

Related Problems

Find third proportional to 21,570 and 34,435.50
Half scale
Find third proportional to 86,280 and 137,742
Double scale
Find third proportional to 43,142 and 68,874
Similar ratio
Find third proportional to 64,710 and 103,306.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.