Home / 76,371.89-114,535.69-31,997.39

Finding the Fourth Proportional to 76,371.89, 114,535.69 and 31,997.39

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Solution

The fourth proportional to 76,371.89, 114,535.69 and 31,997.39 is: 47,986.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,371.89 : 114,535.69 = 31,997.39 : x
  2. Step 2: Convert to fraction form
    76,371.89/114,535.69 = 31,997.39/x
  3. Step 3: Cross multiply
    76,371.89x = 114,535.69 × 31,997.39
  4. Step 4: Simplify right side
    76,371.89x = 3,664,842,489.18
  5. Step 5: Solve for x
    x = 3,664,842,489.18/76,371.89
  6. Step 6: Final answer
    x = 47,986.80

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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.