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Finding the Fourth Proportional to 68,322, 102,500.28 and 19,074

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Solution

The fourth proportional to 68,322, 102,500.28 and 19,074 is: 28,615.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,322 : 102,500.28 = 19,074 : x
  2. Step 2: Convert to fraction form
    68,322/102,500.28 = 19,074/x
  3. Step 3: Cross multiply
    68,322x = 102,500.28 × 19,074
  4. Step 4: Simplify right side
    68,322x = 1,955,090,340.72
  5. Step 5: Solve for x
    x = 1,955,090,340.72/68,322
  6. Step 6: Final answer
    x = 28,615.82

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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.