Home / 55,682.18-76,842.87-31,481.20

Finding the Fourth Proportional to 55,682.18, 76,842.87 and 31,481.20

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Solution

The fourth proportional to 55,682.18, 76,842.87 and 31,481.20 is: 43,444.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,682.18 : 76,842.87 = 31,481.20 : x
  2. Step 2: Convert to fraction form
    55,682.18/76,842.87 = 31,481.20/x
  3. Step 3: Cross multiply
    55,682.18x = 76,842.87 × 31,481.20
  4. Step 4: Simplify right side
    55,682.18x = 2,419,105,374.83
  5. Step 5: Solve for x
    x = 2,419,105,374.83/55,682.18
  6. Step 6: Final answer
    x = 43,444.88

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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.