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Finding the Fourth Proportional to 43,970.78, 65,912.01 and 21,800.27

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Solution

The fourth proportional to 43,970.78, 65,912.01 and 21,800.27 is: 32,678.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,970.78 : 65,912.01 = 21,800.27 : x
  2. Step 2: Convert to fraction form
    43,970.78/65,912.01 = 21,800.27/x
  3. Step 3: Cross multiply
    43,970.78x = 65,912.01 × 21,800.27
  4. Step 4: Simplify right side
    43,970.78x = 1,436,899,284.68
  5. Step 5: Solve for x
    x = 1,436,899,284.68/43,970.78
  6. Step 6: Final answer
    x = 32,678.51

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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.