Home / 40,878-87,993

Finding the Third Proportional to 40,878 and 87,993

Calculator

Solution

The third proportional to 40,878 and 87,993 is: 189,411.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,878 : 87,993 = 87,993 : x
  2. Step 2: Convert to fraction form
    40,878/87,993 = 87,993/x
  3. Step 3: Cross multiply
    40,878x = 87,993 × 87,993
  4. Step 4: Simplify right side
    40,878x = 7,742,768,049
  5. Step 5: Solve for x
    x = 7,742,768,049/40,878
  6. Step 6: Final answer
    x = 189,411.62

Related Problems

Find third proportional to 20,439 and 43,996.50
Half scale
Find third proportional to 81,756 and 175,986
Double scale
Find third proportional to 40,880 and 87,997
Similar ratio
Find third proportional to 61,317 and 131,989.50
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.