Home / 87,794.24-121,156.78-51,517.37

Finding the Fourth Proportional to 87,794.24, 121,156.78 and 51,517.37

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Solution

The fourth proportional to 87,794.24, 121,156.78 and 51,517.37 is: 71,094.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,794.24 : 121,156.78 = 51,517.37 : x
  2. Step 2: Convert to fraction form
    87,794.24/121,156.78 = 51,517.37/x
  3. Step 3: Cross multiply
    87,794.24x = 121,156.78 × 51,517.37
  4. Step 4: Simplify right side
    87,794.24x = 6,241,678,837.37
  5. Step 5: Solve for x
    x = 6,241,678,837.37/87,794.24
  6. Step 6: Final answer
    x = 71,094.40

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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.