Home / 68,911.20-103,391.10-66,481.20

Finding the Fourth Proportional to 68,911.20, 103,391.10 and 66,481.20

Calculator

Solution

The fourth proportional to 68,911.20, 103,391.10 and 66,481.20 is: 99,745.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,911.20 : 103,391.10 = 66,481.20 : x
  2. Step 2: Convert to fraction form
    68,911.20/103,391.10 = 66,481.20/x
  3. Step 3: Cross multiply
    68,911.20x = 103,391.10 × 66,481.20
  4. Step 4: Simplify right side
    68,911.20x = 6,873,564,397.32
  5. Step 5: Solve for x
    x = 6,873,564,397.32/68,911.20
  6. Step 6: Final answer
    x = 99,745.24

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.