Home / 55,728.53-76,905.36-31,855.71

Finding the Fourth Proportional to 55,728.53, 76,905.36 and 31,855.71

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Solution

The fourth proportional to 55,728.53, 76,905.36 and 31,855.71 is: 43,960.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,728.53 : 76,905.36 = 31,855.71 : x
  2. Step 2: Convert to fraction form
    55,728.53/76,905.36 = 31,855.71/x
  3. Step 3: Cross multiply
    55,728.53x = 76,905.36 × 31,855.71
  4. Step 4: Simplify right side
    55,728.53x = 2,449,874,845.61
  5. Step 5: Solve for x
    x = 2,449,874,845.61/55,728.53
  6. Step 6: Final answer
    x = 43,960.88

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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.