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Finding the Fourth Proportional to 68,804.38, 94,953.88 and 51,778

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Solution

The fourth proportional to 68,804.38, 94,953.88 and 51,778 is: 71,456.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,804.38 : 94,953.88 = 51,778 : x
  2. Step 2: Convert to fraction form
    68,804.38/94,953.88 = 51,778/x
  3. Step 3: Cross multiply
    68,804.38x = 94,953.88 × 51,778
  4. Step 4: Simplify right side
    68,804.38x = 4,916,521,998.64
  5. Step 5: Solve for x
    x = 4,916,521,998.64/68,804.38
  6. Step 6: Final answer
    x = 71,456.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.