Home / 91,991.38-126,936.73-53,235.85

Finding the Fourth Proportional to 91,991.38, 126,936.73 and 53,235.85

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Solution

The fourth proportional to 91,991.38, 126,936.73 and 53,235.85 is: 73,458.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,991.38 : 126,936.73 = 53,235.85 : x
  2. Step 2: Convert to fraction form
    91,991.38/126,936.73 = 53,235.85/x
  3. Step 3: Cross multiply
    91,991.38x = 126,936.73 × 53,235.85
  4. Step 4: Simplify right side
    91,991.38x = 6,757,584,267.34
  5. Step 5: Solve for x
    x = 6,757,584,267.34/91,991.38
  6. Step 6: Final answer
    x = 73,458.89

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1.5x scale

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.