Home / 77,072.47-115,617.97-27,142.25

Finding the Fourth Proportional to 77,072.47, 115,617.97 and 27,142.25

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Solution

The fourth proportional to 77,072.47, 115,617.97 and 27,142.25 is: 40,716.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,072.47 : 115,617.97 = 27,142.25 : x
  2. Step 2: Convert to fraction form
    77,072.47/115,617.97 = 27,142.25/x
  3. Step 3: Cross multiply
    77,072.47x = 115,617.97 × 27,142.25
  4. Step 4: Simplify right side
    77,072.47x = 3,138,131,132.43
  5. Step 5: Solve for x
    x = 3,138,131,132.43/77,072.47
  6. Step 6: Final answer
    x = 40,716.63

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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.