Home / 51,974-81,000

Finding the Third Proportional to 51,974 and 81,000

Calculator

Solution

The third proportional to 51,974 and 81,000 is: 126,236.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,974 : 81,000 = 81,000 : x
  2. Step 2: Convert to fraction form
    51,974/81,000 = 81,000/x
  3. Step 3: Cross multiply
    51,974x = 81,000 × 81,000
  4. Step 4: Simplify right side
    51,974x = 6,561,000,000
  5. Step 5: Solve for x
    x = 6,561,000,000/51,974
  6. Step 6: Final answer
    x = 126,236.20

Related Problems

Find third proportional to 25,987 and 40,500
Half scale
Find third proportional to 103,948 and 162,000
Double scale
Find third proportional to 51,976 and 81,003
Similar ratio
Find third proportional to 77,961 and 121,500
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.