Home / 71,195.10-106,784.55-18,609.90

Finding the Fourth Proportional to 71,195.10, 106,784.55 and 18,609.90

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Solution

The fourth proportional to 71,195.10, 106,784.55 and 18,609.90 is: 27,912.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,195.10 : 106,784.55 = 18,609.90 : x
  2. Step 2: Convert to fraction form
    71,195.10/106,784.55 = 18,609.90/x
  3. Step 3: Cross multiply
    71,195.10x = 106,784.55 × 18,609.90
  4. Step 4: Simplify right side
    71,195.10x = 1,987,249,797.05
  5. Step 5: Solve for x
    x = 1,987,249,797.05/71,195.10
  6. Step 6: Final answer
    x = 27,912.73

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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.