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Finding the Fourth Proportional to 68,800.38, 94,948.36 and 51,774

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Solution

The fourth proportional to 68,800.38, 94,948.36 and 51,774 is: 71,451.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,800.38 : 94,948.36 = 51,774 : x
  2. Step 2: Convert to fraction form
    68,800.38/94,948.36 = 51,774/x
  3. Step 3: Cross multiply
    68,800.38x = 94,948.36 × 51,774
  4. Step 4: Simplify right side
    68,800.38x = 4,915,856,390.64
  5. Step 5: Solve for x
    x = 4,915,856,390.64/68,800.38
  6. Step 6: Final answer
    x = 71,451.01

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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.