Home / 55,122-87,398

Finding the Third Proportional to 55,122 and 87,398

Calculator

Solution

The third proportional to 55,122 and 87,398 is: 138,572.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,122 : 87,398 = 87,398 : x
  2. Step 2: Convert to fraction form
    55,122/87,398 = 87,398/x
  3. Step 3: Cross multiply
    55,122x = 87,398 × 87,398
  4. Step 4: Simplify right side
    55,122x = 7,638,410,404
  5. Step 5: Solve for x
    x = 7,638,410,404/55,122
  6. Step 6: Final answer
    x = 138,572.81

Related Problems

Find third proportional to 27,561 and 43,699
Half scale
Find third proportional to 110,244 and 174,796
Double scale
Find third proportional to 55,124 and 87,401
Similar ratio
Find third proportional to 82,683 and 131,097
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.