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Finding the Fourth Proportional to 53,153.52, 79,738.92 and 18,089.52

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Solution

The fourth proportional to 53,153.52, 79,738.92 and 18,089.52 is: 27,137.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,153.52 : 79,738.92 = 18,089.52 : x
  2. Step 2: Convert to fraction form
    53,153.52/79,738.92 = 18,089.52/x
  3. Step 3: Cross multiply
    53,153.52x = 79,738.92 × 18,089.52
  4. Step 4: Simplify right side
    53,153.52x = 1,442,438,788.12
  5. Step 5: Solve for x
    x = 1,442,438,788.12/53,153.52
  6. Step 6: Final answer
    x = 27,137.22

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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.