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Finding the Fourth Proportional to 45,467.78, 68,201.81 and 15,885.62

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Solution

The fourth proportional to 45,467.78, 68,201.81 and 15,885.62 is: 23,828.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,467.78 : 68,201.81 = 15,885.62 : x
  2. Step 2: Convert to fraction form
    45,467.78/68,201.81 = 15,885.62/x
  3. Step 3: Cross multiply
    45,467.78x = 68,201.81 × 15,885.62
  4. Step 4: Simplify right side
    45,467.78x = 1,083,427,887.18
  5. Step 5: Solve for x
    x = 1,083,427,887.18/45,467.78
  6. Step 6: Final answer
    x = 23,828.48

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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.