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Finding the Fourth Proportional to 87,951.41, 121,299.41 and 57,713.21

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Solution

The fourth proportional to 87,951.41, 121,299.41 and 57,713.21 is: 79,595.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,951.41 : 121,299.41 = 57,713.21 : x
  2. Step 2: Convert to fraction form
    87,951.41/121,299.41 = 57,713.21/x
  3. Step 3: Cross multiply
    87,951.41x = 121,299.41 × 57,713.21
  4. Step 4: Simplify right side
    87,951.41x = 7,000,578,033.64
  5. Step 5: Solve for x
    x = 7,000,578,033.64/87,951.41
  6. Step 6: Final answer
    x = 79,595.97

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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.