Home / 57,163.14-78,881.31-31,667.79

Finding the Fourth Proportional to 57,163.14, 78,881.31 and 31,667.79

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Solution

The fourth proportional to 57,163.14, 78,881.31 and 31,667.79 is: 43,699.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,163.14 : 78,881.31 = 31,667.79 : x
  2. Step 2: Convert to fraction form
    57,163.14/78,881.31 = 31,667.79/x
  3. Step 3: Cross multiply
    57,163.14x = 78,881.31 × 31,667.79
  4. Step 4: Simplify right side
    57,163.14x = 2,497,996,760.00
  5. Step 5: Solve for x
    x = 2,497,996,760.00/57,163.14
  6. Step 6: Final answer
    x = 43,699.43

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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.