Home / 55,067.74-75,976.41-30,865.35

Finding the Fourth Proportional to 55,067.74, 75,976.41 and 30,865.35

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Solution

The fourth proportional to 55,067.74, 75,976.41 and 30,865.35 is: 42,584.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,067.74 : 75,976.41 = 30,865.35 : x
  2. Step 2: Convert to fraction form
    55,067.74/75,976.41 = 30,865.35/x
  3. Step 3: Cross multiply
    55,067.74x = 75,976.41 × 30,865.35
  4. Step 4: Simplify right side
    55,067.74x = 2,345,038,486.39
  5. Step 5: Solve for x
    x = 2,345,038,486.39/55,067.74
  6. Step 6: Final answer
    x = 42,584.61

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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.