Home / 55,242-87,885

Finding the Third Proportional to 55,242 and 87,885

Calculator

Solution

The third proportional to 55,242 and 87,885 is: 139,817.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,242 : 87,885 = 87,885 : x
  2. Step 2: Convert to fraction form
    55,242/87,885 = 87,885/x
  3. Step 3: Cross multiply
    55,242x = 87,885 × 87,885
  4. Step 4: Simplify right side
    55,242x = 7,723,773,225
  5. Step 5: Solve for x
    x = 7,723,773,225/55,242
  6. Step 6: Final answer
    x = 139,817.05

Related Problems

Find third proportional to 27,621 and 43,942.50
Half scale
Find third proportional to 110,484 and 175,770
Double scale
Find third proportional to 55,244 and 87,888
Similar ratio
Find third proportional to 82,863 and 131,827.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.