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Finding the Fourth Proportional to 45,372, 68,058 and 17,689.44

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Solution

The fourth proportional to 45,372, 68,058 and 17,689.44 is: 26,534.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,372 : 68,058 = 17,689.44 : x
  2. Step 2: Convert to fraction form
    45,372/68,058 = 17,689.44/x
  3. Step 3: Cross multiply
    45,372x = 68,058 × 17,689.44
  4. Step 4: Simplify right side
    45,372x = 1,203,907,907.52
  5. Step 5: Solve for x
    x = 1,203,907,907.52/45,372
  6. Step 6: Final answer
    x = 26,534.16

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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.