Home / 30,956-68,080

Finding the Third Proportional to 30,956 and 68,080

Calculator

Solution

The third proportional to 30,956 and 68,080 is: 149,724.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,956 : 68,080 = 68,080 : x
  2. Step 2: Convert to fraction form
    30,956/68,080 = 68,080/x
  3. Step 3: Cross multiply
    30,956x = 68,080 × 68,080
  4. Step 4: Simplify right side
    30,956x = 4,634,886,400
  5. Step 5: Solve for x
    x = 4,634,886,400/30,956
  6. Step 6: Final answer
    x = 149,724.98

Related Problems

Find third proportional to 15,478 and 34,040
Half scale
Find third proportional to 61,912 and 136,160
Double scale
Find third proportional to 30,958 and 68,084
Similar ratio
Find third proportional to 46,434 and 102,120
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.