Home / 91.94-137.87-51.37

Finding the Fourth Proportional to 91.94, 137.87 and 51.37

Calculator

Solution

The fourth proportional to 91.94, 137.87 and 51.37 is: 77.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    91.94 : 137.87 = 51.37 : x
  2. Step 2: Convert to fraction form
    91.94/137.87 = 51.37/x
  3. Step 3: Cross multiply
    91.94x = 137.87 × 51.37
  4. Step 4: Simplify right side
    91.94x = 7,081.97
  5. Step 5: Solve for x
    x = 7,081.97/91.94
  6. Step 6: Final answer
    x = 77.03

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.