Home / 87,635.79-131,396.18-31,447.71

Finding the Fourth Proportional to 87,635.79, 131,396.18 and 31,447.71

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Solution

The fourth proportional to 87,635.79, 131,396.18 and 31,447.71 is: 47,150.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,635.79 : 131,396.18 = 31,447.71 : x
  2. Step 2: Convert to fraction form
    87,635.79/131,396.18 = 31,447.71/x
  3. Step 3: Cross multiply
    87,635.79x = 131,396.18 × 31,447.71
  4. Step 4: Simplify right side
    87,635.79x = 4,132,108,806.51
  5. Step 5: Solve for x
    x = 4,132,108,806.51/87,635.79
  6. Step 6: Final answer
    x = 47,150.93

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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.