Home / 48-55

Finding the Third Proportional to 48 and 55

Calculator

Solution

The third proportional to 48 and 55 is: 63.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    48 : 55 = 55 : x
  2. Step 2: Convert to fraction form
    48/55 = 55/x
  3. Step 3: Cross multiply
    48x = 55 × 55
  4. Step 4: Simplify right side
    48x = 3,025
  5. Step 5: Solve for x
    x = 3,025/48
  6. Step 6: Final answer
    x = 63.02

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.