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Finding the Fourth Proportional to 89,857.83, 134,772.43 and 29,881.31

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Solution

The fourth proportional to 89,857.83, 134,772.43 and 29,881.31 is: 44,817.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,857.83 : 134,772.43 = 29,881.31 : x
  2. Step 2: Convert to fraction form
    89,857.83/134,772.43 = 29,881.31/x
  3. Step 3: Cross multiply
    89,857.83x = 134,772.43 × 29,881.31
  4. Step 4: Simplify right side
    89,857.83x = 4,027,176,760.28
  5. Step 5: Solve for x
    x = 4,027,176,760.28/89,857.83
  6. Step 6: Final answer
    x = 44,817.20

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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.