Home / 87,796.37-121,159.55-51,490.41

Finding the Fourth Proportional to 87,796.37, 121,159.55 and 51,490.41

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Solution

The fourth proportional to 87,796.37, 121,159.55 and 51,490.41 is: 71,057.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,796.37 : 121,159.55 = 51,490.41 : x
  2. Step 2: Convert to fraction form
    87,796.37/121,159.55 = 51,490.41/x
  3. Step 3: Cross multiply
    87,796.37x = 121,159.55 × 51,490.41
  4. Step 4: Simplify right side
    87,796.37x = 6,238,554,904.92
  5. Step 5: Solve for x
    x = 6,238,554,904.92/87,796.37
  6. Step 6: Final answer
    x = 71,057.09

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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.