Home / 57,182.12-78,914.36-31,691.27

Finding the Fourth Proportional to 57,182.12, 78,914.36 and 31,691.27

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Solution

The fourth proportional to 57,182.12, 78,914.36 and 31,691.27 is: 43,735.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,182.12 : 78,914.36 = 31,691.27 : x
  2. Step 2: Convert to fraction form
    57,182.12/78,914.36 = 31,691.27/x
  3. Step 3: Cross multiply
    57,182.12x = 78,914.36 × 31,691.27
  4. Step 4: Simplify right side
    57,182.12x = 2,500,896,289.64
  5. Step 5: Solve for x
    x = 2,500,896,289.64/57,182.12
  6. Step 6: Final answer
    x = 43,735.63

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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.