Home / 40,686-63,765

Finding the Third Proportional to 40,686 and 63,765

Calculator

Solution

The third proportional to 40,686 and 63,765 is: 99,935.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,686 : 63,765 = 63,765 : x
  2. Step 2: Convert to fraction form
    40,686/63,765 = 63,765/x
  3. Step 3: Cross multiply
    40,686x = 63,765 × 63,765
  4. Step 4: Simplify right side
    40,686x = 4,065,975,225
  5. Step 5: Solve for x
    x = 4,065,975,225/40,686
  6. Step 6: Final answer
    x = 99,935.49

Related Problems

Find third proportional to 20,343 and 31,882.50
Half scale
Find third proportional to 81,372 and 127,530
Double scale
Find third proportional to 40,688 and 63,768
Similar ratio
Find third proportional to 61,029 and 95,647.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.