Home / 87,425.64-131,174.46-31,272.84

Finding the Fourth Proportional to 87,425.64, 131,174.46 and 31,272.84

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Solution

The fourth proportional to 87,425.64, 131,174.46 and 31,272.84 is: 46,922.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,425.64 : 131,174.46 = 31,272.84 : x
  2. Step 2: Convert to fraction form
    87,425.64/131,174.46 = 31,272.84/x
  3. Step 3: Cross multiply
    87,425.64x = 131,174.46 × 31,272.84
  4. Step 4: Simplify right side
    87,425.64x = 4,102,197,899.67
  5. Step 5: Solve for x
    x = 4,102,197,899.67/87,425.64
  6. Step 6: Final answer
    x = 46,922.14

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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.