Home / 204,038.73-306,081.39-54,285.12

Finding the Fourth Proportional to 204,038.73, 306,081.39 and 54,285.12

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Solution

The fourth proportional to 204,038.73, 306,081.39 and 54,285.12 is: 81,433.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,038.73 : 306,081.39 = 54,285.12 : x
  2. Step 2: Convert to fraction form
    204,038.73/306,081.39 = 54,285.12/x
  3. Step 3: Cross multiply
    204,038.73x = 306,081.39 × 54,285.12
  4. Step 4: Simplify right side
    204,038.73x = 16,615,664,985.92
  5. Step 5: Solve for x
    x = 16,615,664,985.92/204,038.73
  6. Step 6: Final answer
    x = 81,433.88

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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.