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Finding the Fourth Proportional to 45,504, 68,252.16 and 15,516

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Solution

The fourth proportional to 45,504, 68,252.16 and 15,516 is: 23,272.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,504 : 68,252.16 = 15,516 : x
  2. Step 2: Convert to fraction form
    45,504/68,252.16 = 15,516/x
  3. Step 3: Cross multiply
    45,504x = 68,252.16 × 15,516
  4. Step 4: Simplify right side
    45,504x = 1,059,000,514.56
  5. Step 5: Solve for x
    x = 1,059,000,514.56/45,504
  6. Step 6: Final answer
    x = 23,272.69

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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.