Home / 45,867.92-68,789.39-12,580.05

Finding the Fourth Proportional to 45,867.92, 68,789.39 and 12,580.05

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Solution

The fourth proportional to 45,867.92, 68,789.39 and 12,580.05 is: 18,866.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,867.92 : 68,789.39 = 12,580.05 : x
  2. Step 2: Convert to fraction form
    45,867.92/68,789.39 = 12,580.05/x
  3. Step 3: Cross multiply
    45,867.92x = 68,789.39 × 12,580.05
  4. Step 4: Simplify right side
    45,867.92x = 865,374,160.73
  5. Step 5: Solve for x
    x = 865,374,160.73/45,867.92
  6. Step 6: Final answer
    x = 18,866.66

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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.