Home / 31,260-68,449

Finding the Third Proportional to 31,260 and 68,449

Calculator

Solution

The third proportional to 31,260 and 68,449 is: 149,880.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,260 : 68,449 = 68,449 : x
  2. Step 2: Convert to fraction form
    31,260/68,449 = 68,449/x
  3. Step 3: Cross multiply
    31,260x = 68,449 × 68,449
  4. Step 4: Simplify right side
    31,260x = 4,685,265,601
  5. Step 5: Solve for x
    x = 4,685,265,601/31,260
  6. Step 6: Final answer
    x = 149,880.54

Related Problems

Find third proportional to 15,630 and 34,224.50
Half scale
Find third proportional to 62,520 and 136,898
Double scale
Find third proportional to 31,262 and 68,453
Similar ratio
Find third proportional to 46,890 and 102,673.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.