Home / 71,204.10-106,812.23-18,613.50

Finding the Fourth Proportional to 71,204.10, 106,812.23 and 18,613.50

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Solution

The fourth proportional to 71,204.10, 106,812.23 and 18,613.50 is: 27,921.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,204.10 : 106,812.23 = 18,613.50 : x
  2. Step 2: Convert to fraction form
    71,204.10/106,812.23 = 18,613.50/x
  3. Step 3: Cross multiply
    71,204.10x = 106,812.23 × 18,613.50
  4. Step 4: Simplify right side
    71,204.10x = 1,988,149,350.04
  5. Step 5: Solve for x
    x = 1,988,149,350.04/71,204.10
  6. Step 6: Final answer
    x = 27,921.84

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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.