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Finding the Fourth Proportional to 45,188.03, 67,800.62 and 19,874.51

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Solution

The fourth proportional to 45,188.03, 67,800.62 and 19,874.51 is: 29,819.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,188.03 : 67,800.62 = 19,874.51 : x
  2. Step 2: Convert to fraction form
    45,188.03/67,800.62 = 19,874.51/x
  3. Step 3: Cross multiply
    45,188.03x = 67,800.62 × 19,874.51
  4. Step 4: Simplify right side
    45,188.03x = 1,347,504,390.61
  5. Step 5: Solve for x
    x = 1,347,504,390.61/45,188.03
  6. Step 6: Final answer
    x = 29,819.94

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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.