Home / 87,936.64-121,353.60-51,635.68

Finding the Fourth Proportional to 87,936.64, 121,353.60 and 51,635.68

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Solution

The fourth proportional to 87,936.64, 121,353.60 and 51,635.68 is: 71,257.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,936.64 : 121,353.60 = 51,635.68 : x
  2. Step 2: Convert to fraction form
    87,936.64/121,353.60 = 51,635.68/x
  3. Step 3: Cross multiply
    87,936.64x = 121,353.60 × 51,635.68
  4. Step 4: Simplify right side
    87,936.64x = 6,266,175,656.45
  5. Step 5: Solve for x
    x = 6,266,175,656.45/87,936.64
  6. Step 6: Final answer
    x = 71,257.85

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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.