Home / 77,067.46-115,608.88-20,908.49

Finding the Fourth Proportional to 77,067.46, 115,608.88 and 20,908.49

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Solution

The fourth proportional to 77,067.46, 115,608.88 and 20,908.49 is: 31,364.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,067.46 : 115,608.88 = 20,908.49 : x
  2. Step 2: Convert to fraction form
    77,067.46/115,608.88 = 20,908.49/x
  3. Step 3: Cross multiply
    77,067.46x = 115,608.88 × 20,908.49
  4. Step 4: Simplify right side
    77,067.46x = 2,417,207,426.55
  5. Step 5: Solve for x
    x = 2,417,207,426.55/77,067.46
  6. Step 6: Final answer
    x = 31,364.83

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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.