Home / 66,959-90,836

Finding the Third Proportional to 66,959 and 90,836

Calculator

Solution

The third proportional to 66,959 and 90,836 is: 123,227.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,959 : 90,836 = 90,836 : x
  2. Step 2: Convert to fraction form
    66,959/90,836 = 90,836/x
  3. Step 3: Cross multiply
    66,959x = 90,836 × 90,836
  4. Step 4: Simplify right side
    66,959x = 8,251,178,896
  5. Step 5: Solve for x
    x = 8,251,178,896/66,959
  6. Step 6: Final answer
    x = 123,227.33

Related Problems

Find third proportional to 33,479.50 and 45,418
Half scale
Find third proportional to 133,918 and 181,672
Double scale
Find third proportional to 66,961 and 90,839
Similar ratio
Find third proportional to 100,438.50 and 136,254
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.