Home / 91,128-125,760.30-50,845.29

Finding the Fourth Proportional to 91,128, 125,760.30 and 50,845.29

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Solution

The fourth proportional to 91,128, 125,760.30 and 50,845.29 is: 70,168.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,128 : 125,760.30 = 50,845.29 : x
  2. Step 2: Convert to fraction form
    91,128/125,760.30 = 50,845.29/x
  3. Step 3: Cross multiply
    91,128x = 125,760.30 × 50,845.29
  4. Step 4: Simplify right side
    91,128x = 6,394,318,923.99
  5. Step 5: Solve for x
    x = 6,394,318,923.99/91,128
  6. Step 6: Final answer
    x = 70,168.54

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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.