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Finding the Fourth Proportional to 76,807.56, 115,183.62 and 29,435.94

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Solution

The fourth proportional to 76,807.56, 115,183.62 and 29,435.94 is: 44,143.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,807.56 : 115,183.62 = 29,435.94 : x
  2. Step 2: Convert to fraction form
    76,807.56/115,183.62 = 29,435.94/x
  3. Step 3: Cross multiply
    76,807.56x = 115,183.62 × 29,435.94
  4. Step 4: Simplify right side
    76,807.56x = 3,390,538,127.30
  5. Step 5: Solve for x
    x = 3,390,538,127.30/76,807.56
  6. Step 6: Final answer
    x = 44,143.29

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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.