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Finding the Fourth Proportional to 81,610.00, 122,341.12 and 29,007.18

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Solution

The fourth proportional to 81,610.00, 122,341.12 and 29,007.18 is: 43,484.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,610.00 : 122,341.12 = 29,007.18 : x
  2. Step 2: Convert to fraction form
    81,610.00/122,341.12 = 29,007.18/x
  3. Step 3: Cross multiply
    81,610.00x = 122,341.12 × 29,007.18
  4. Step 4: Simplify right side
    81,610.00x = 3,548,770,816.72
  5. Step 5: Solve for x
    x = 3,548,770,816.72/81,610.00
  6. Step 6: Final answer
    x = 43,484.51

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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.