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Finding the Fourth Proportional to 78,906, 108,893.52 and 45,372

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Solution

The fourth proportional to 78,906, 108,893.52 and 45,372 is: 62,615.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,906 : 108,893.52 = 45,372 : x
  2. Step 2: Convert to fraction form
    78,906/108,893.52 = 45,372/x
  3. Step 3: Cross multiply
    78,906x = 108,893.52 × 45,372
  4. Step 4: Simplify right side
    78,906x = 4,940,716,789.44
  5. Step 5: Solve for x
    x = 4,940,716,789.44/78,906
  6. Step 6: Final answer
    x = 62,615.22

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