Home / 45,383.41-68,078.37-12,103.30

Finding the Fourth Proportional to 45,383.41, 68,078.37 and 12,103.30

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Solution

The fourth proportional to 45,383.41, 68,078.37 and 12,103.30 is: 18,155.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,383.41 : 68,078.37 = 12,103.30 : x
  2. Step 2: Convert to fraction form
    45,383.41/68,078.37 = 12,103.30/x
  3. Step 3: Cross multiply
    45,383.41x = 68,078.37 × 12,103.30
  4. Step 4: Simplify right side
    45,383.41x = 823,972,935.62
  5. Step 5: Solve for x
    x = 823,972,935.62/45,383.41
  6. Step 6: Final answer
    x = 18,155.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.