Home / 55,120.80-76,067.44-31,246.88

Finding the Fourth Proportional to 55,120.80, 76,067.44 and 31,246.88

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Solution

The fourth proportional to 55,120.80, 76,067.44 and 31,246.88 is: 43,121.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,120.80 : 76,067.44 = 31,246.88 : x
  2. Step 2: Convert to fraction form
    55,120.80/76,067.44 = 31,246.88/x
  3. Step 3: Cross multiply
    55,120.80x = 76,067.44 × 31,246.88
  4. Step 4: Simplify right side
    55,120.80x = 2,376,870,169.59
  5. Step 5: Solve for x
    x = 2,376,870,169.59/55,120.80
  6. Step 6: Final answer
    x = 43,121.11

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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.