Home / 77,786.40-107,326.92-45,960.12

Finding the Fourth Proportional to 77,786.40, 107,326.92 and 45,960.12

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Solution

The fourth proportional to 77,786.40, 107,326.92 and 45,960.12 is: 63,414.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,786.40 : 107,326.92 = 45,960.12 : x
  2. Step 2: Convert to fraction form
    77,786.40/107,326.92 = 45,960.12/x
  3. Step 3: Cross multiply
    77,786.40x = 107,326.92 × 45,960.12
  4. Step 4: Simplify right side
    77,786.40x = 4,932,758,122.43
  5. Step 5: Solve for x
    x = 4,932,758,122.43/77,786.40
  6. Step 6: Final answer
    x = 63,414.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.