Home / 57,280.33-79,046.68-31,790.54

Finding the Fourth Proportional to 57,280.33, 79,046.68 and 31,790.54

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Solution

The fourth proportional to 57,280.33, 79,046.68 and 31,790.54 is: 43,870.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,280.33 : 79,046.68 = 31,790.54 : x
  2. Step 2: Convert to fraction form
    57,280.33/79,046.68 = 31,790.54/x
  3. Step 3: Cross multiply
    57,280.33x = 79,046.68 × 31,790.54
  4. Step 4: Simplify right side
    57,280.33x = 2,512,936,642.41
  5. Step 5: Solve for x
    x = 2,512,936,642.41/57,280.33
  6. Step 6: Final answer
    x = 43,870.85

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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.