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Finding the Fourth Proportional to 172,544.58, 258,858.33 and 54,215.84

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Solution

The fourth proportional to 172,544.58, 258,858.33 and 54,215.84 is: 81,336.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,544.58 : 258,858.33 = 54,215.84 : x
  2. Step 2: Convert to fraction form
    172,544.58/258,858.33 = 54,215.84/x
  3. Step 3: Cross multiply
    172,544.58x = 258,858.33 × 54,215.84
  4. Step 4: Simplify right side
    172,544.58x = 14,034,220,507.66
  5. Step 5: Solve for x
    x = 14,034,220,507.66/172,544.58
  6. Step 6: Final answer
    x = 81,336.78

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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.