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Finding the Fourth Proportional to 68,174.88, 102,300.41 and 39,744.87

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Solution

The fourth proportional to 68,174.88, 102,300.41 and 39,744.87 is: 59,639.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,174.88 : 102,300.41 = 39,744.87 : x
  2. Step 2: Convert to fraction form
    68,174.88/102,300.41 = 39,744.87/x
  3. Step 3: Cross multiply
    68,174.88x = 102,300.41 × 39,744.87
  4. Step 4: Simplify right side
    68,174.88x = 4,065,916,297.67
  5. Step 5: Solve for x
    x = 4,065,916,297.67/68,174.88
  6. Step 6: Final answer
    x = 59,639.51

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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.