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Finding the Fourth Proportional to 68,612.52, 102,904.38 and 19,353

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Solution

The fourth proportional to 68,612.52, 102,904.38 and 19,353 is: 29,025.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,612.52 : 102,904.38 = 19,353 : x
  2. Step 2: Convert to fraction form
    68,612.52/102,904.38 = 19,353/x
  3. Step 3: Cross multiply
    68,612.52x = 102,904.38 × 19,353
  4. Step 4: Simplify right side
    68,612.52x = 1,991,508,466.14
  5. Step 5: Solve for x
    x = 1,991,508,466.14/68,612.52
  6. Step 6: Final answer
    x = 29,025.44

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Why These Related Problems?

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