Home / 74.77-112.17-23.40

Finding the Fourth Proportional to 74.77, 112.17 and 23.40

Calculator

Solution

The fourth proportional to 74.77, 112.17 and 23.40 is: 35.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74.77 : 112.17 = 23.40 : x
  2. Step 2: Convert to fraction form
    74.77/112.17 = 23.40/x
  3. Step 3: Cross multiply
    74.77x = 112.17 × 23.40
  4. Step 4: Simplify right side
    74.77x = 2,624.78
  5. Step 5: Solve for x
    x = 2,624.78/74.77
  6. Step 6: Final answer
    x = 35.10

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.