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Finding the Fourth Proportional to 68,495.52, 102,743.02 and 18,575.49

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Solution

The fourth proportional to 68,495.52, 102,743.02 and 18,575.49 is: 27,863.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,495.52 : 102,743.02 = 18,575.49 : x
  2. Step 2: Convert to fraction form
    68,495.52/102,743.02 = 18,575.49/x
  3. Step 3: Cross multiply
    68,495.52x = 102,743.02 × 18,575.49
  4. Step 4: Simplify right side
    68,495.52x = 1,908,501,940.58
  5. Step 5: Solve for x
    x = 1,908,501,940.58/68,495.52
  6. Step 6: Final answer
    x = 27,863.16

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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.