Home / 63.56-87.67-47.23

Finding the Fourth Proportional to 63.56, 87.67 and 47.23

Calculator

Solution

The fourth proportional to 63.56, 87.67 and 47.23 is: 65.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    63.56 : 87.67 = 47.23 : x
  2. Step 2: Convert to fraction form
    63.56/87.67 = 47.23/x
  3. Step 3: Cross multiply
    63.56x = 87.67 × 47.23
  4. Step 4: Simplify right side
    63.56x = 4,140.65
  5. Step 5: Solve for x
    x = 4,140.65/63.56
  6. Step 6: Final answer
    x = 65.15

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.