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Finding the Fourth Proportional to 57,982.70, 86,974.05 and 18,541.10

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Solution

The fourth proportional to 57,982.70, 86,974.05 and 18,541.10 is: 27,811.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,982.70 : 86,974.05 = 18,541.10 : x
  2. Step 2: Convert to fraction form
    57,982.70/86,974.05 = 18,541.10/x
  3. Step 3: Cross multiply
    57,982.70x = 86,974.05 × 18,541.10
  4. Step 4: Simplify right side
    57,982.70x = 1,612,594,558.46
  5. Step 5: Solve for x
    x = 1,612,594,558.46/57,982.70
  6. Step 6: Final answer
    x = 27,811.65

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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.