Home / 55,109.54-76,052.05-31,235.72

Finding the Fourth Proportional to 55,109.54, 76,052.05 and 31,235.72

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Solution

The fourth proportional to 55,109.54, 76,052.05 and 31,235.72 is: 43,105.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,109.54 : 76,052.05 = 31,235.72 : x
  2. Step 2: Convert to fraction form
    55,109.54/76,052.05 = 31,235.72/x
  3. Step 3: Cross multiply
    55,109.54x = 76,052.05 × 31,235.72
  4. Step 4: Simplify right side
    55,109.54x = 2,375,540,080.88
  5. Step 5: Solve for x
    x = 2,375,540,080.88/55,109.54
  6. Step 6: Final answer
    x = 43,105.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.