Home / 87,859.24-131,755.74-31,684.36

Finding the Fourth Proportional to 87,859.24, 131,755.74 and 31,684.36

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Solution

The fourth proportional to 87,859.24, 131,755.74 and 31,684.36 is: 47,514.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,859.24 : 131,755.74 = 31,684.36 : x
  2. Step 2: Convert to fraction form
    87,859.24/131,755.74 = 31,684.36/x
  3. Step 3: Cross multiply
    87,859.24x = 131,755.74 × 31,684.36
  4. Step 4: Simplify right side
    87,859.24x = 4,174,596,298.23
  5. Step 5: Solve for x
    x = 4,174,596,298.23/87,859.24
  6. Step 6: Final answer
    x = 47,514.60

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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.