Home / 70.72-106.10-25.06

Finding the Fourth Proportional to 70.72, 106.10 and 25.06

Calculator

Solution

The fourth proportional to 70.72, 106.10 and 25.06 is: 37.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    70.72 : 106.10 = 25.06 : x
  2. Step 2: Convert to fraction form
    70.72/106.10 = 25.06/x
  3. Step 3: Cross multiply
    70.72x = 106.10 × 25.06
  4. Step 4: Simplify right side
    70.72x = 2,658.87
  5. Step 5: Solve for x
    x = 2,658.87/70.72
  6. Step 6: Final answer
    x = 37.60

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.