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Finding the Fourth Proportional to 43,687.56, 65,533.80 and 12,522

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Solution

The fourth proportional to 43,687.56, 65,533.80 and 12,522 is: 18,783.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,687.56 : 65,533.80 = 12,522 : x
  2. Step 2: Convert to fraction form
    43,687.56/65,533.80 = 12,522/x
  3. Step 3: Cross multiply
    43,687.56x = 65,533.80 × 12,522
  4. Step 4: Simplify right side
    43,687.56x = 820,614,243.60
  5. Step 5: Solve for x
    x = 820,614,243.60/43,687.56
  6. Step 6: Final answer
    x = 18,783.71

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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.