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Finding the Fourth Proportional to 68,552.32, 102,836.80 and 19,304.32

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Solution

The fourth proportional to 68,552.32, 102,836.80 and 19,304.32 is: 28,958.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,552.32 : 102,836.80 = 19,304.32 : x
  2. Step 2: Convert to fraction form
    68,552.32/102,836.80 = 19,304.32/x
  3. Step 3: Cross multiply
    68,552.32x = 102,836.80 × 19,304.32
  4. Step 4: Simplify right side
    68,552.32x = 1,985,194,494.98
  5. Step 5: Solve for x
    x = 1,985,194,494.98/68,552.32
  6. Step 6: Final answer
    x = 28,958.82

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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.