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Finding the Fourth Proportional to 88,311, 132,434.10 and 29,129.16

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Solution

The fourth proportional to 88,311, 132,434.10 and 29,129.16 is: 43,683.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,311 : 132,434.10 = 29,129.16 : x
  2. Step 2: Convert to fraction form
    88,311/132,434.10 = 29,129.16/x
  3. Step 3: Cross multiply
    88,311x = 132,434.10 × 29,129.16
  4. Step 4: Simplify right side
    88,311x = 3,857,694,088.36
  5. Step 5: Solve for x
    x = 3,857,694,088.36/88,311
  6. Step 6: Final answer
    x = 43,683.05

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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.