Home / 78.98-108.88-60.48

Finding the Fourth Proportional to 78.98, 108.88 and 60.48

Calculator

Solution

The fourth proportional to 78.98, 108.88 and 60.48 is: 83.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    78.98 : 108.88 = 60.48 : x
  2. Step 2: Convert to fraction form
    78.98/108.88 = 60.48/x
  3. Step 3: Cross multiply
    78.98x = 108.88 × 60.48
  4. Step 4: Simplify right side
    78.98x = 6,584.91
  5. Step 5: Solve for x
    x = 6,584.91/78.98
  6. Step 6: Final answer
    x = 83.38

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.