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Finding the Fourth Proportional to 68,640.62, 102,927.98 and 29,176.34

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Solution

The fourth proportional to 68,640.62, 102,927.98 and 29,176.34 is: 43,750.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,640.62 : 102,927.98 = 29,176.34 : x
  2. Step 2: Convert to fraction form
    68,640.62/102,927.98 = 29,176.34/x
  3. Step 3: Cross multiply
    68,640.62x = 102,927.98 × 29,176.34
  4. Step 4: Simplify right side
    68,640.62x = 3,003,061,739.99
  5. Step 5: Solve for x
    x = 3,003,061,739.99/68,640.62
  6. Step 6: Final answer
    x = 43,750.50

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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.