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Finding the Fourth Proportional to 45,336, 68,007.84 and 12,504

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Solution

The fourth proportional to 45,336, 68,007.84 and 12,504 is: 18,757.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,336 : 68,007.84 = 12,504 : x
  2. Step 2: Convert to fraction form
    45,336/68,007.84 = 12,504/x
  3. Step 3: Cross multiply
    45,336x = 68,007.84 × 12,504
  4. Step 4: Simplify right side
    45,336x = 850,370,031.36
  5. Step 5: Solve for x
    x = 850,370,031.36/45,336
  6. Step 6: Final answer
    x = 18,757.06

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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.