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Finding the Fourth Proportional to 103,639.60, 155,455.62 and 33,517

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Solution

The fourth proportional to 103,639.60, 155,455.62 and 33,517 is: 50,274.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,639.60 : 155,455.62 = 33,517 : x
  2. Step 2: Convert to fraction form
    103,639.60/155,455.62 = 33,517/x
  3. Step 3: Cross multiply
    103,639.60x = 155,455.62 × 33,517
  4. Step 4: Simplify right side
    103,639.60x = 5,210,406,015.54
  5. Step 5: Solve for x
    x = 5,210,406,015.54/103,639.60
  6. Step 6: Final answer
    x = 50,274.28

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.