Home / 57,428.54-79,255.69-31,939.46

Finding the Fourth Proportional to 57,428.54, 79,255.69 and 31,939.46

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Solution

The fourth proportional to 57,428.54, 79,255.69 and 31,939.46 is: 44,078.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,428.54 : 79,255.69 = 31,939.46 : x
  2. Step 2: Convert to fraction form
    57,428.54/79,255.69 = 31,939.46/x
  3. Step 3: Cross multiply
    57,428.54x = 79,255.69 × 31,939.46
  4. Step 4: Simplify right side
    57,428.54x = 2,531,383,464.40
  5. Step 5: Solve for x
    x = 2,531,383,464.40/57,428.54
  6. Step 6: Final answer
    x = 44,078.84

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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.