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Finding the Fourth Proportional to 58,481.52, 87,714 and 19,039.20

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Solution

The fourth proportional to 58,481.52, 87,714 and 19,039.20 is: 28,556.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,481.52 : 87,714 = 19,039.20 : x
  2. Step 2: Convert to fraction form
    58,481.52/87,714 = 19,039.20/x
  3. Step 3: Cross multiply
    58,481.52x = 87,714 × 19,039.20
  4. Step 4: Simplify right side
    58,481.52x = 1,670,004,388.80
  5. Step 5: Solve for x
    x = 1,670,004,388.80/58,481.52
  6. Step 6: Final answer
    x = 28,556.10

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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.