Home / 55,286.25-76,295.16-30,135.75

Finding the Fourth Proportional to 55,286.25, 76,295.16 and 30,135.75

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Solution

The fourth proportional to 55,286.25, 76,295.16 and 30,135.75 is: 41,587.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,286.25 : 76,295.16 = 30,135.75 : x
  2. Step 2: Convert to fraction form
    55,286.25/76,295.16 = 30,135.75/x
  3. Step 3: Cross multiply
    55,286.25x = 76,295.16 × 30,135.75
  4. Step 4: Simplify right side
    55,286.25x = 2,299,211,867.97
  5. Step 5: Solve for x
    x = 2,299,211,867.97/55,286.25
  6. Step 6: Final answer
    x = 41,587.41

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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.