Home / 52,211.78-72,019.46-30,976

Finding the Fourth Proportional to 52,211.78, 72,019.46 and 30,976

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Solution

The fourth proportional to 52,211.78, 72,019.46 and 30,976 is: 42,727.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,211.78 : 72,019.46 = 30,976 : x
  2. Step 2: Convert to fraction form
    52,211.78/72,019.46 = 30,976/x
  3. Step 3: Cross multiply
    52,211.78x = 72,019.46 × 30,976
  4. Step 4: Simplify right side
    52,211.78x = 2,230,874,792.96
  5. Step 5: Solve for x
    x = 2,230,874,792.96/52,211.78
  6. Step 6: Final answer
    x = 42,727.42

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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.