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Finding the Fourth Proportional to 43,181.87, 64,772.81 and 16,868.16

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Solution

The fourth proportional to 43,181.87, 64,772.81 and 16,868.16 is: 25,302.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,181.87 : 64,772.81 = 16,868.16 : x
  2. Step 2: Convert to fraction form
    43,181.87/64,772.81 = 16,868.16/x
  3. Step 3: Cross multiply
    43,181.87x = 64,772.81 × 16,868.16
  4. Step 4: Simplify right side
    43,181.87x = 1,092,598,122.73
  5. Step 5: Solve for x
    x = 1,092,598,122.73/43,181.87
  6. Step 6: Final answer
    x = 25,302.24

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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.