Home / 52,211.62-71,997.56-30,986.78

Finding the Fourth Proportional to 52,211.62, 71,997.56 and 30,986.78

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Solution

The fourth proportional to 52,211.62, 71,997.56 and 30,986.78 is: 42,729.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,211.62 : 71,997.56 = 30,986.78 : x
  2. Step 2: Convert to fraction form
    52,211.62/71,997.56 = 30,986.78/x
  3. Step 3: Cross multiply
    52,211.62x = 71,997.56 × 30,986.78
  4. Step 4: Simplify right side
    52,211.62x = 2,230,972,552.26
  5. Step 5: Solve for x
    x = 2,230,972,552.26/52,211.62
  6. Step 6: Final answer
    x = 42,729.43

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1.5x scale

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.