Home / 91,142.56-125,773.79-49,747.96

Finding the Fourth Proportional to 91,142.56, 125,773.79 and 49,747.96

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Solution

The fourth proportional to 91,142.56, 125,773.79 and 49,747.96 is: 68,650.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,142.56 : 125,773.79 = 49,747.96 : x
  2. Step 2: Convert to fraction form
    91,142.56/125,773.79 = 49,747.96/x
  3. Step 3: Cross multiply
    91,142.56x = 125,773.79 × 49,747.96
  4. Step 4: Simplify right side
    91,142.56x = 6,256,988,910.79
  5. Step 5: Solve for x
    x = 6,256,988,910.79/91,142.56
  6. Step 6: Final answer
    x = 68,650.57

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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.