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Finding the Fourth Proportional to 85,265.92, 117,664.60 and 49,453.68

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Solution

The fourth proportional to 85,265.92, 117,664.60 and 49,453.68 is: 68,244.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,265.92 : 117,664.60 = 49,453.68 : x
  2. Step 2: Convert to fraction form
    85,265.92/117,664.60 = 49,453.68/x
  3. Step 3: Cross multiply
    85,265.92x = 117,664.60 × 49,453.68
  4. Step 4: Simplify right side
    85,265.92x = 5,818,947,475.73
  5. Step 5: Solve for x
    x = 5,818,947,475.73/85,265.92
  6. Step 6: Final answer
    x = 68,244.70

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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.