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Finding the Fourth Proportional to 45,081, 62,211.78 and 25,209

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Solution

The fourth proportional to 45,081, 62,211.78 and 25,209 is: 34,788.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,081 : 62,211.78 = 25,209 : x
  2. Step 2: Convert to fraction form
    45,081/62,211.78 = 25,209/x
  3. Step 3: Cross multiply
    45,081x = 62,211.78 × 25,209
  4. Step 4: Simplify right side
    45,081x = 1,568,296,762.02
  5. Step 5: Solve for x
    x = 1,568,296,762.02/45,081
  6. Step 6: Final answer
    x = 34,788.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.