Home / 87,745.64-131,637.90-40,973

Finding the Fourth Proportional to 87,745.64, 131,637.90 and 40,973

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Solution

The fourth proportional to 87,745.64, 131,637.90 and 40,973 is: 61,468.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,745.64 : 131,637.90 = 40,973 : x
  2. Step 2: Convert to fraction form
    87,745.64/131,637.90 = 40,973/x
  3. Step 3: Cross multiply
    87,745.64x = 131,637.90 × 40,973
  4. Step 4: Simplify right side
    87,745.64x = 5,393,599,676.70
  5. Step 5: Solve for x
    x = 5,393,599,676.70/87,745.64
  6. Step 6: Final answer
    x = 61,468.58

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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.