Home / 88,229.10-121,756.90-47,942.87

Finding the Fourth Proportional to 88,229.10, 121,756.90 and 47,942.87

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Solution

The fourth proportional to 88,229.10, 121,756.90 and 47,942.87 is: 66,161.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,229.10 : 121,756.90 = 47,942.87 : x
  2. Step 2: Convert to fraction form
    88,229.10/121,756.90 = 47,942.87/x
  3. Step 3: Cross multiply
    88,229.10x = 121,756.90 × 47,942.87
  4. Step 4: Simplify right side
    88,229.10x = 5,837,375,228.30
  5. Step 5: Solve for x
    x = 5,837,375,228.30/88,229.10
  6. Step 6: Final answer
    x = 66,161.56

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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.