Home / 67.61-93.44-55.31

Finding the Fourth Proportional to 67.61, 93.44 and 55.31

Calculator

Solution

The fourth proportional to 67.61, 93.44 and 55.31 is: 76.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    67.61 : 93.44 = 55.31 : x
  2. Step 2: Convert to fraction form
    67.61/93.44 = 55.31/x
  3. Step 3: Cross multiply
    67.61x = 93.44 × 55.31
  4. Step 4: Simplify right side
    67.61x = 5,167.89
  5. Step 5: Solve for x
    x = 5,167.89/67.61
  6. Step 6: Final answer
    x = 76.44

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.