Home / 55,780.54-76,976.79-31,907.61

Finding the Fourth Proportional to 55,780.54, 76,976.79 and 31,907.61

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Solution

The fourth proportional to 55,780.54, 76,976.79 and 31,907.61 is: 44,032.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,780.54 : 76,976.79 = 31,907.61 : x
  2. Step 2: Convert to fraction form
    55,780.54/76,976.79 = 31,907.61/x
  3. Step 3: Cross multiply
    55,780.54x = 76,976.79 × 31,907.61
  4. Step 4: Simplify right side
    55,780.54x = 2,456,145,394.37
  5. Step 5: Solve for x
    x = 2,456,145,394.37/55,780.54
  6. Step 6: Final answer
    x = 44,032.30

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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.