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Finding the Fourth Proportional to 53,564.65, 80,335.44 and 21,943.71

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Solution

The fourth proportional to 53,564.65, 80,335.44 and 21,943.71 is: 32,910.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,564.65 : 80,335.44 = 21,943.71 : x
  2. Step 2: Convert to fraction form
    53,564.65/80,335.44 = 21,943.71/x
  3. Step 3: Cross multiply
    53,564.65x = 80,335.44 × 21,943.71
  4. Step 4: Simplify right side
    53,564.65x = 1,762,857,379.11
  5. Step 5: Solve for x
    x = 1,762,857,379.11/53,564.65
  6. Step 6: Final answer
    x = 32,910.83

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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.