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Finding the Fourth Proportional to 69,676.88, 96,137.60 and 40,997.79

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Solution

The fourth proportional to 69,676.88, 96,137.60 and 40,997.79 is: 56,567.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,676.88 : 96,137.60 = 40,997.79 : x
  2. Step 2: Convert to fraction form
    69,676.88/96,137.60 = 40,997.79/x
  3. Step 3: Cross multiply
    69,676.88x = 96,137.60 × 40,997.79
  4. Step 4: Simplify right side
    69,676.88x = 3,941,428,930.92
  5. Step 5: Solve for x
    x = 3,941,428,930.92/69,676.88
  6. Step 6: Final answer
    x = 56,567.25

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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.