Home / 76,918.82-115,379.13-27,000.34

Finding the Fourth Proportional to 76,918.82, 115,379.13 and 27,000.34

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Solution

The fourth proportional to 76,918.82, 115,379.13 and 27,000.34 is: 40,500.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,918.82 : 115,379.13 = 27,000.34 : x
  2. Step 2: Convert to fraction form
    76,918.82/115,379.13 = 27,000.34/x
  3. Step 3: Cross multiply
    76,918.82x = 115,379.13 × 27,000.34
  4. Step 4: Simplify right side
    76,918.82x = 3,115,275,551.71
  5. Step 5: Solve for x
    x = 3,115,275,551.71/76,918.82
  6. Step 6: Final answer
    x = 40,500.83

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1.5x scale

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.