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Finding the Fourth Proportional to 68,397.84, 102,519 and 28,930.32

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Solution

The fourth proportional to 68,397.84, 102,519 and 28,930.32 is: 43,362.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,397.84 : 102,519 = 28,930.32 : x
  2. Step 2: Convert to fraction form
    68,397.84/102,519 = 28,930.32/x
  3. Step 3: Cross multiply
    68,397.84x = 102,519 × 28,930.32
  4. Step 4: Simplify right side
    68,397.84x = 2,965,907,476.08
  5. Step 5: Solve for x
    x = 2,965,907,476.08/68,397.84
  6. Step 6: Final answer
    x = 43,362.59

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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.