Home / 77,694.12-107,623.94-76,119.48

Finding the Fourth Proportional to 77,694.12, 107,623.94 and 76,119.48

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Solution

The fourth proportional to 77,694.12, 107,623.94 and 76,119.48 is: 105,442.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,694.12 : 107,623.94 = 76,119.48 : x
  2. Step 2: Convert to fraction form
    77,694.12/107,623.94 = 76,119.48/x
  3. Step 3: Cross multiply
    77,694.12x = 107,623.94 × 76,119.48
  4. Step 4: Simplify right side
    77,694.12x = 8,192,278,348.35
  5. Step 5: Solve for x
    x = 8,192,278,348.35/77,694.12
  6. Step 6: Final answer
    x = 105,442.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.