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Finding the Fourth Proportional to 172,744.56, 259,104.36 and 54,449.76

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Solution

The fourth proportional to 172,744.56, 259,104.36 and 54,449.76 is: 81,670.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,744.56 : 259,104.36 = 54,449.76 : x
  2. Step 2: Convert to fraction form
    172,744.56/259,104.36 = 54,449.76/x
  3. Step 3: Cross multiply
    172,744.56x = 259,104.36 × 54,449.76
  4. Step 4: Simplify right side
    172,744.56x = 14,108,170,216.95
  5. Step 5: Solve for x
    x = 14,108,170,216.95/172,744.56
  6. Step 6: Final answer
    x = 81,670.71

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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.