Home / 31,134-66,805

Finding the Third Proportional to 31,134 and 66,805

Calculator

Solution

The third proportional to 31,134 and 66,805 is: 143,345.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,134 : 66,805 = 66,805 : x
  2. Step 2: Convert to fraction form
    31,134/66,805 = 66,805/x
  3. Step 3: Cross multiply
    31,134x = 66,805 × 66,805
  4. Step 4: Simplify right side
    31,134x = 4,462,908,025
  5. Step 5: Solve for x
    x = 4,462,908,025/31,134
  6. Step 6: Final answer
    x = 143,345.15

Related Problems

Find third proportional to 15,567 and 33,402.50
Half scale
Find third proportional to 62,268 and 133,610
Double scale
Find third proportional to 31,136 and 66,809
Similar ratio
Find third proportional to 46,701 and 100,207.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.