Home / 76,945.30-115,403.37-27,013.66

Finding the Fourth Proportional to 76,945.30, 115,403.37 and 27,013.66

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Solution

The fourth proportional to 76,945.30, 115,403.37 and 27,013.66 is: 40,515.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,945.30 : 115,403.37 = 27,013.66 : x
  2. Step 2: Convert to fraction form
    76,945.30/115,403.37 = 27,013.66/x
  3. Step 3: Cross multiply
    76,945.30x = 115,403.37 × 27,013.66
  4. Step 4: Simplify right side
    76,945.30x = 3,117,467,400.03
  5. Step 5: Solve for x
    x = 3,117,467,400.03/76,945.30
  6. Step 6: Final answer
    x = 40,515.37

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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.