Home / 71,913.62-99,241.26-40,084.54

Finding the Fourth Proportional to 71,913.62, 99,241.26 and 40,084.54

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Solution

The fourth proportional to 71,913.62, 99,241.26 and 40,084.54 is: 55,316.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,913.62 : 99,241.26 = 40,084.54 : x
  2. Step 2: Convert to fraction form
    71,913.62/99,241.26 = 40,084.54/x
  3. Step 3: Cross multiply
    71,913.62x = 99,241.26 × 40,084.54
  4. Step 4: Simplify right side
    71,913.62x = 3,978,040,256.12
  5. Step 5: Solve for x
    x = 3,978,040,256.12/71,913.62
  6. Step 6: Final answer
    x = 55,316.92

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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.