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Finding the Fourth Proportional to 68,262.76, 102,411.42 and 28,799.56

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Solution

The fourth proportional to 68,262.76, 102,411.42 and 28,799.56 is: 43,206.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,262.76 : 102,411.42 = 28,799.56 : x
  2. Step 2: Convert to fraction form
    68,262.76/102,411.42 = 28,799.56/x
  3. Step 3: Cross multiply
    68,262.76x = 102,411.42 × 28,799.56
  4. Step 4: Simplify right side
    68,262.76x = 2,949,403,834.98
  5. Step 5: Solve for x
    x = 2,949,403,834.98/68,262.76
  6. Step 6: Final answer
    x = 43,206.63

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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.