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Finding the Fourth Proportional to 53,449.98, 80,174.13 and 18,389.94

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Solution

The fourth proportional to 53,449.98, 80,174.13 and 18,389.94 is: 27,584.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,449.98 : 80,174.13 = 18,389.94 : x
  2. Step 2: Convert to fraction form
    53,449.98/80,174.13 = 18,389.94/x
  3. Step 3: Cross multiply
    53,449.98x = 80,174.13 × 18,389.94
  4. Step 4: Simplify right side
    53,449.98x = 1,474,397,440.25
  5. Step 5: Solve for x
    x = 1,474,397,440.25/53,449.98
  6. Step 6: Final answer
    x = 27,584.62

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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.