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Finding the Fourth Proportional to 87,615.91, 131,434.79 and 34,301

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Solution

The fourth proportional to 87,615.91, 131,434.79 and 34,301 is: 51,455.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,615.91 : 131,434.79 = 34,301 : x
  2. Step 2: Convert to fraction form
    87,615.91/131,434.79 = 34,301/x
  3. Step 3: Cross multiply
    87,615.91x = 131,434.79 × 34,301
  4. Step 4: Simplify right side
    87,615.91x = 4,508,344,731.79
  5. Step 5: Solve for x
    x = 4,508,344,731.79/87,615.91
  6. Step 6: Final answer
    x = 51,455.78

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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.