Home / 54,039.78-81,014.31-19,002.42

Finding the Fourth Proportional to 54,039.78, 81,014.31 and 19,002.42

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Solution

The fourth proportional to 54,039.78, 81,014.31 and 19,002.42 is: 28,487.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,039.78 : 81,014.31 = 19,002.42 : x
  2. Step 2: Convert to fraction form
    54,039.78/81,014.31 = 19,002.42/x
  3. Step 3: Cross multiply
    54,039.78x = 81,014.31 × 19,002.42
  4. Step 4: Simplify right side
    54,039.78x = 1,539,467,944.63
  5. Step 5: Solve for x
    x = 1,539,467,944.63/54,039.78
  6. Step 6: Final answer
    x = 28,487.68

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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.