Home / 77,327.77-115,958.82-27,420.43

Finding the Fourth Proportional to 77,327.77, 115,958.82 and 27,420.43

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Solution

The fourth proportional to 77,327.77, 115,958.82 and 27,420.43 is: 41,119.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,327.77 : 115,958.82 = 27,420.43 : x
  2. Step 2: Convert to fraction form
    77,327.77/115,958.82 = 27,420.43/x
  3. Step 3: Cross multiply
    77,327.77x = 115,958.82 × 27,420.43
  4. Step 4: Simplify right side
    77,327.77x = 3,179,640,706.69
  5. Step 5: Solve for x
    x = 3,179,640,706.69/77,327.77
  6. Step 6: Final answer
    x = 41,119.00

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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.