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Finding the Fourth Proportional to 69,126.84, 103,690.08 and 27,603

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Solution

The fourth proportional to 69,126.84, 103,690.08 and 27,603 is: 41,404.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,126.84 : 103,690.08 = 27,603 : x
  2. Step 2: Convert to fraction form
    69,126.84/103,690.08 = 27,603/x
  3. Step 3: Cross multiply
    69,126.84x = 103,690.08 × 27,603
  4. Step 4: Simplify right side
    69,126.84x = 2,862,157,278.24
  5. Step 5: Solve for x
    x = 2,862,157,278.24/69,126.84
  6. Step 6: Final answer
    x = 41,404.43

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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.