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Finding the Fourth Proportional to 44,805, 67,207.50 and 15,621

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Solution

The fourth proportional to 44,805, 67,207.50 and 15,621 is: 23,431.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,805 : 67,207.50 = 15,621 : x
  2. Step 2: Convert to fraction form
    44,805/67,207.50 = 15,621/x
  3. Step 3: Cross multiply
    44,805x = 67,207.50 × 15,621
  4. Step 4: Simplify right side
    44,805x = 1,049,848,357.50
  5. Step 5: Solve for x
    x = 1,049,848,357.50/44,805
  6. Step 6: Final answer
    x = 23,431.50

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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.