Home / 76,942.11-115,425.92-27,009.25

Finding the Fourth Proportional to 76,942.11, 115,425.92 and 27,009.25

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Solution

The fourth proportional to 76,942.11, 115,425.92 and 27,009.25 is: 40,518.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,942.11 : 115,425.92 = 27,009.25 : x
  2. Step 2: Convert to fraction form
    76,942.11/115,425.92 = 27,009.25/x
  3. Step 3: Cross multiply
    76,942.11x = 115,425.92 × 27,009.25
  4. Step 4: Simplify right side
    76,942.11x = 3,117,567,529.76
  5. Step 5: Solve for x
    x = 3,117,567,529.76/76,942.11
  6. Step 6: Final answer
    x = 40,518.35

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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.