Home / 49,846.72-74,748.20-18,660.10

Finding the Fourth Proportional to 49,846.72, 74,748.20 and 18,660.10

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Solution

The fourth proportional to 49,846.72, 74,748.20 and 18,660.10 is: 27,981.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,846.72 : 74,748.20 = 18,660.10 : x
  2. Step 2: Convert to fraction form
    49,846.72/74,748.20 = 18,660.10/x
  3. Step 3: Cross multiply
    49,846.72x = 74,748.20 × 18,660.10
  4. Step 4: Simplify right side
    49,846.72x = 1,394,808,513.08
  5. Step 5: Solve for x
    x = 1,394,808,513.08/49,846.72
  6. Step 6: Final answer
    x = 27,981.95

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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.