Home / 55,768.67-77,112.15-54,867.31

Finding the Fourth Proportional to 55,768.67, 77,112.15 and 54,867.31

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Solution

The fourth proportional to 55,768.67, 77,112.15 and 54,867.31 is: 75,865.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,768.67 : 77,112.15 = 54,867.31 : x
  2. Step 2: Convert to fraction form
    55,768.67/77,112.15 = 54,867.31/x
  3. Step 3: Cross multiply
    55,768.67x = 77,112.15 × 54,867.31
  4. Step 4: Simplify right side
    55,768.67x = 4,230,936,129.45
  5. Step 5: Solve for x
    x = 4,230,936,129.45/55,768.67
  6. Step 6: Final answer
    x = 75,865.82

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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.