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Finding the Fourth Proportional to 68,335.72, 102,503.26 and 21,588.52

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Solution

The fourth proportional to 68,335.72, 102,503.26 and 21,588.52 is: 32,382.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,335.72 : 102,503.26 = 21,588.52 : x
  2. Step 2: Convert to fraction form
    68,335.72/102,503.26 = 21,588.52/x
  3. Step 3: Cross multiply
    68,335.72x = 102,503.26 × 21,588.52
  4. Step 4: Simplify right side
    68,335.72x = 2,212,893,678.58
  5. Step 5: Solve for x
    x = 2,212,893,678.58/68,335.72
  6. Step 6: Final answer
    x = 32,382.68

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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.