Home / 72,398.12-108,530.36-50,221.96

Finding the Fourth Proportional to 72,398.12, 108,530.36 and 50,221.96

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Solution

The fourth proportional to 72,398.12, 108,530.36 and 50,221.96 is: 75,286.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,398.12 : 108,530.36 = 50,221.96 : x
  2. Step 2: Convert to fraction form
    72,398.12/108,530.36 = 50,221.96/x
  3. Step 3: Cross multiply
    72,398.12x = 108,530.36 × 50,221.96
  4. Step 4: Simplify right side
    72,398.12x = 5,450,607,398.71
  5. Step 5: Solve for x
    x = 5,450,607,398.71/72,398.12
  6. Step 6: Final answer
    x = 75,286.59

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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.