Home / 90.73-136.14-36.64

Finding the Fourth Proportional to 90.73, 136.14 and 36.64

Calculator

Solution

The fourth proportional to 90.73, 136.14 and 36.64 is: 54.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    90.73 : 136.14 = 36.64 : x
  2. Step 2: Convert to fraction form
    90.73/136.14 = 36.64/x
  3. Step 3: Cross multiply
    90.73x = 136.14 × 36.64
  4. Step 4: Simplify right side
    90.73x = 4,988.17
  5. Step 5: Solve for x
    x = 4,988.17/90.73
  6. Step 6: Final answer
    x = 54.98

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.