Home / 85,408.12-117,854.48-49,605.71

Finding the Fourth Proportional to 85,408.12, 117,854.48 and 49,605.71

Calculator

Solution

The fourth proportional to 85,408.12, 117,854.48 and 49,605.71 is: 68,450.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,408.12 : 117,854.48 = 49,605.71 : x
  2. Step 2: Convert to fraction form
    85,408.12/117,854.48 = 49,605.71/x
  3. Step 3: Cross multiply
    85,408.12x = 117,854.48 × 49,605.71
  4. Step 4: Simplify right side
    85,408.12x = 5,846,254,909.05
  5. Step 5: Solve for x
    x = 5,846,254,909.05/85,408.12
  6. Step 6: Final answer
    x = 68,450.81

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.