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Finding the Fourth Proportional to 58,181.10, 87,271.56 and 18,744

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Solution

The fourth proportional to 58,181.10, 87,271.56 and 18,744 is: 28,115.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,181.10 : 87,271.56 = 18,744 : x
  2. Step 2: Convert to fraction form
    58,181.10/87,271.56 = 18,744/x
  3. Step 3: Cross multiply
    58,181.10x = 87,271.56 × 18,744
  4. Step 4: Simplify right side
    58,181.10x = 1,635,818,120.64
  5. Step 5: Solve for x
    x = 1,635,818,120.64/58,181.10
  6. Step 6: Final answer
    x = 28,115.97

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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.