Home / 72.84-100.53-43.74

Finding the Fourth Proportional to 72.84, 100.53 and 43.74

Calculator

Solution

The fourth proportional to 72.84, 100.53 and 43.74 is: 60.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    72.84 : 100.53 = 43.74 : x
  2. Step 2: Convert to fraction form
    72.84/100.53 = 43.74/x
  3. Step 3: Cross multiply
    72.84x = 100.53 × 43.74
  4. Step 4: Simplify right side
    72.84x = 4,397.18
  5. Step 5: Solve for x
    x = 4,397.18/72.84
  6. Step 6: Final answer
    x = 60.37

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.