Home / 66,845.18-100,270.78-21,869.10

Finding the Fourth Proportional to 66,845.18, 100,270.78 and 21,869.10

Calculator

Solution

The fourth proportional to 66,845.18, 100,270.78 and 21,869.10 is: 32,804.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,845.18 : 100,270.78 = 21,869.10 : x
  2. Step 2: Convert to fraction form
    66,845.18/100,270.78 = 21,869.10/x
  3. Step 3: Cross multiply
    66,845.18x = 100,270.78 × 21,869.10
  4. Step 4: Simplify right side
    66,845.18x = 2,192,831,660.23
  5. Step 5: Solve for x
    x = 2,192,831,660.23/66,845.18
  6. Step 6: Final answer
    x = 32,804.63

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.