Home / 27,720-62,840

Finding the Third Proportional to 27,720 and 62,840

Calculator

Solution

The third proportional to 27,720 and 62,840 is: 142,455.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,720 : 62,840 = 62,840 : x
  2. Step 2: Convert to fraction form
    27,720/62,840 = 62,840/x
  3. Step 3: Cross multiply
    27,720x = 62,840 × 62,840
  4. Step 4: Simplify right side
    27,720x = 3,948,865,600
  5. Step 5: Solve for x
    x = 3,948,865,600/27,720
  6. Step 6: Final answer
    x = 142,455.47

Related Problems

Find third proportional to 13,860 and 31,420
Half scale
Find third proportional to 55,440 and 125,680
Double scale
Find third proportional to 27,722 and 62,845
Similar ratio
Find third proportional to 41,580 and 94,260
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.27) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.