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Finding the Fourth Proportional to 54,956.76, 82,379.73 and 21,663.93

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Solution

The fourth proportional to 54,956.76, 82,379.73 and 21,663.93 is: 32,474.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,956.76 : 82,379.73 = 21,663.93 : x
  2. Step 2: Convert to fraction form
    54,956.76/82,379.73 = 21,663.93/x
  3. Step 3: Cross multiply
    54,956.76x = 82,379.73 × 21,663.93
  4. Step 4: Simplify right side
    54,956.76x = 1,784,668,704.14
  5. Step 5: Solve for x
    x = 1,784,668,704.14/54,956.76
  6. Step 6: Final answer
    x = 32,474.05

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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.