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Finding the Fourth Proportional to 66,838.72, 100,248 and 22,463.68

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Solution

The fourth proportional to 66,838.72, 100,248 and 22,463.68 is: 33,692.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,838.72 : 100,248 = 22,463.68 : x
  2. Step 2: Convert to fraction form
    66,838.72/100,248 = 22,463.68/x
  3. Step 3: Cross multiply
    66,838.72x = 100,248 × 22,463.68
  4. Step 4: Simplify right side
    66,838.72x = 2,251,938,992.64
  5. Step 5: Solve for x
    x = 2,251,938,992.64/66,838.72
  6. Step 6: Final answer
    x = 33,692.13

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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.