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Finding the Fourth Proportional to 81,207.59, 121,832.40 and 25,046.46

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Solution

The fourth proportional to 81,207.59, 121,832.40 and 25,046.46 is: 37,576.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,207.59 : 121,832.40 = 25,046.46 : x
  2. Step 2: Convert to fraction form
    81,207.59/121,832.40 = 25,046.46/x
  3. Step 3: Cross multiply
    81,207.59x = 121,832.40 × 25,046.46
  4. Step 4: Simplify right side
    81,207.59x = 3,051,470,333.30
  5. Step 5: Solve for x
    x = 3,051,470,333.30/81,207.59
  6. Step 6: Final answer
    x = 37,576.17

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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.