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Finding the Fourth Proportional to 68,473.45, 102,702.07 and 18,550.45

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Solution

The fourth proportional to 68,473.45, 102,702.07 and 18,550.45 is: 27,823.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,473.45 : 102,702.07 = 18,550.45 : x
  2. Step 2: Convert to fraction form
    68,473.45/102,702.07 = 18,550.45/x
  3. Step 3: Cross multiply
    68,473.45x = 102,702.07 × 18,550.45
  4. Step 4: Simplify right side
    68,473.45x = 1,905,169,614.43
  5. Step 5: Solve for x
    x = 1,905,169,614.43/68,473.45
  6. Step 6: Final answer
    x = 27,823.48

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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.