Home / 91,109.70-125,731.56-50,822.42

Finding the Fourth Proportional to 91,109.70, 125,731.56 and 50,822.42

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Solution

The fourth proportional to 91,109.70, 125,731.56 and 50,822.42 is: 70,135.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,109.70 : 125,731.56 = 50,822.42 : x
  2. Step 2: Convert to fraction form
    91,109.70/125,731.56 = 50,822.42/x
  3. Step 3: Cross multiply
    91,109.70x = 125,731.56 × 50,822.42
  4. Step 4: Simplify right side
    91,109.70x = 6,389,982,149.58
  5. Step 5: Solve for x
    x = 6,389,982,149.58/91,109.70
  6. Step 6: Final answer
    x = 70,135.04

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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.