Home / 57,357.24-78,969.90-48,939.96

Finding the Fourth Proportional to 57,357.24, 78,969.90 and 48,939.96

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Solution

The fourth proportional to 57,357.24, 78,969.90 and 48,939.96 is: 67,380.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,357.24 : 78,969.90 = 48,939.96 : x
  2. Step 2: Convert to fraction form
    57,357.24/78,969.90 = 48,939.96/x
  3. Step 3: Cross multiply
    57,357.24x = 78,969.90 × 48,939.96
  4. Step 4: Simplify right side
    57,357.24x = 3,864,783,747.20
  5. Step 5: Solve for x
    x = 3,864,783,747.20/57,357.24
  6. Step 6: Final answer
    x = 67,380.92

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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.