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Finding the Fourth Proportional to 68,895.38, 95,068.28 and 38,684

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Solution

The fourth proportional to 68,895.38, 95,068.28 and 38,684 is: 53,379.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,895.38 : 95,068.28 = 38,684 : x
  2. Step 2: Convert to fraction form
    68,895.38/95,068.28 = 38,684/x
  3. Step 3: Cross multiply
    68,895.38x = 95,068.28 × 38,684
  4. Step 4: Simplify right side
    68,895.38x = 3,677,621,343.52
  5. Step 5: Solve for x
    x = 3,677,621,343.52/68,895.38
  6. Step 6: Final answer
    x = 53,379.80

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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.