Home / 91,711.27-126,562.89-53,469.78

Finding the Fourth Proportional to 91,711.27, 126,562.89 and 53,469.78

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Solution

The fourth proportional to 91,711.27, 126,562.89 and 53,469.78 is: 73,789.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,711.27 : 126,562.89 = 53,469.78 : x
  2. Step 2: Convert to fraction form
    91,711.27/126,562.89 = 53,469.78/x
  3. Step 3: Cross multiply
    91,711.27x = 126,562.89 × 53,469.78
  4. Step 4: Simplify right side
    91,711.27x = 6,767,289,884.46
  5. Step 5: Solve for x
    x = 6,767,289,884.46/91,711.27
  6. Step 6: Final answer
    x = 73,789.08

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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.