Home / 91,711.70-126,588.39-54,007.82

Finding the Fourth Proportional to 91,711.70, 126,588.39 and 54,007.82

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Solution

The fourth proportional to 91,711.70, 126,588.39 and 54,007.82 is: 74,546.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,711.70 : 126,588.39 = 54,007.82 : x
  2. Step 2: Convert to fraction form
    91,711.70/126,588.39 = 54,007.82/x
  3. Step 3: Cross multiply
    91,711.70x = 126,588.39 × 54,007.82
  4. Step 4: Simplify right side
    91,711.70x = 6,836,762,981.21
  5. Step 5: Solve for x
    x = 6,836,762,981.21/91,711.70
  6. Step 6: Final answer
    x = 74,546.25

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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.