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Finding the Fourth Proportional to 87,458.72, 131,188 and 37,506.56

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Solution

The fourth proportional to 87,458.72, 131,188 and 37,506.56 is: 56,259.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,458.72 : 131,188 = 37,506.56 : x
  2. Step 2: Convert to fraction form
    87,458.72/131,188 = 37,506.56/x
  3. Step 3: Cross multiply
    87,458.72x = 131,188 × 37,506.56
  4. Step 4: Simplify right side
    87,458.72x = 4,920,410,593.28
  5. Step 5: Solve for x
    x = 4,920,410,593.28/87,458.72
  6. Step 6: Final answer
    x = 56,259.81

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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.