Home / 61.51-84.76-47.54

Finding the Fourth Proportional to 61.51, 84.76 and 47.54

Calculator

Solution

The fourth proportional to 61.51, 84.76 and 47.54 is: 65.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    61.51 : 84.76 = 47.54 : x
  2. Step 2: Convert to fraction form
    61.51/84.76 = 47.54/x
  3. Step 3: Cross multiply
    61.51x = 84.76 × 47.54
  4. Step 4: Simplify right side
    61.51x = 4,029.49
  5. Step 5: Solve for x
    x = 4,029.49/61.51
  6. Step 6: Final answer
    x = 65.51

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.