Home / 79.38-108.95-70.07

Finding the Fourth Proportional to 79.38, 108.95 and 70.07

Calculator

Solution

The fourth proportional to 79.38, 108.95 and 70.07 is: 96.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    79.38 : 108.95 = 70.07 : x
  2. Step 2: Convert to fraction form
    79.38/108.95 = 70.07/x
  3. Step 3: Cross multiply
    79.38x = 108.95 × 70.07
  4. Step 4: Simplify right side
    79.38x = 7,633.23
  5. Step 5: Solve for x
    x = 7,633.23/79.38
  6. Step 6: Final answer
    x = 96.16

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.