Home / 172,961.20-259,449.56-53,009.36

Finding the Fourth Proportional to 172,961.20, 259,449.56 and 53,009.36

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Solution

The fourth proportional to 172,961.20, 259,449.56 and 53,009.36 is: 79,516.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,961.20 : 259,449.56 = 53,009.36 : x
  2. Step 2: Convert to fraction form
    172,961.20/259,449.56 = 53,009.36/x
  3. Step 3: Cross multiply
    172,961.20x = 259,449.56 × 53,009.36
  4. Step 4: Simplify right side
    172,961.20x = 13,753,255,127.88
  5. Step 5: Solve for x
    x = 13,753,255,127.88/172,961.20
  6. Step 6: Final answer
    x = 79,516.42

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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.