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Finding the Fourth Proportional to 68,037.52, 102,062.04 and 18,789.52

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Solution

The fourth proportional to 68,037.52, 102,062.04 and 18,789.52 is: 28,185.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,037.52 : 102,062.04 = 18,789.52 : x
  2. Step 2: Convert to fraction form
    68,037.52/102,062.04 = 18,789.52/x
  3. Step 3: Cross multiply
    68,037.52x = 102,062.04 × 18,789.52
  4. Step 4: Simplify right side
    68,037.52x = 1,917,696,741.82
  5. Step 5: Solve for x
    x = 1,917,696,741.82/68,037.52
  6. Step 6: Final answer
    x = 28,185.87

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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.