Home / 76,372.39-114,536.44-31,997.89

Finding the Fourth Proportional to 76,372.39, 114,536.44 and 31,997.89

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Solution

The fourth proportional to 76,372.39, 114,536.44 and 31,997.89 is: 47,987.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,372.39 : 114,536.44 = 31,997.89 : x
  2. Step 2: Convert to fraction form
    76,372.39/114,536.44 = 31,997.89/x
  3. Step 3: Cross multiply
    76,372.39x = 114,536.44 × 31,997.89
  4. Step 4: Simplify right side
    76,372.39x = 3,664,923,675.44
  5. Step 5: Solve for x
    x = 3,664,923,675.44/76,372.39
  6. Step 6: Final answer
    x = 47,987.55

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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.