Home / 72,311.04-108,489.60-57,576.96

Finding the Fourth Proportional to 72,311.04, 108,489.60 and 57,576.96

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Solution

The fourth proportional to 72,311.04, 108,489.60 and 57,576.96 is: 86,383.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,311.04 : 108,489.60 = 57,576.96 : x
  2. Step 2: Convert to fraction form
    72,311.04/108,489.60 = 57,576.96/x
  3. Step 3: Cross multiply
    72,311.04x = 108,489.60 × 57,576.96
  4. Step 4: Simplify right side
    72,311.04x = 6,246,501,359.62
  5. Step 5: Solve for x
    x = 6,246,501,359.62/72,311.04
  6. Step 6: Final answer
    x = 86,383.79

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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.