Home / 55,081.20-76,011.86-31,212.44

Finding the Fourth Proportional to 55,081.20, 76,011.86 and 31,212.44

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Solution

The fourth proportional to 55,081.20, 76,011.86 and 31,212.44 is: 43,073.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,081.20 : 76,011.86 = 31,212.44 : x
  2. Step 2: Convert to fraction form
    55,081.20/76,011.86 = 31,212.44/x
  3. Step 3: Cross multiply
    55,081.20x = 76,011.86 × 31,212.44
  4. Step 4: Simplify right side
    55,081.20x = 2,372,515,083.42
  5. Step 5: Solve for x
    x = 2,372,515,083.42/55,081.20
  6. Step 6: Final answer
    x = 43,073.05

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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.