Home / 87,970.35-131,877.09-31,797.93

Finding the Fourth Proportional to 87,970.35, 131,877.09 and 31,797.93

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Solution

The fourth proportional to 87,970.35, 131,877.09 and 31,797.93 is: 47,668.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,970.35 : 131,877.09 = 31,797.93 : x
  2. Step 2: Convert to fraction form
    87,970.35/131,877.09 = 31,797.93/x
  3. Step 3: Cross multiply
    87,970.35x = 131,877.09 × 31,797.93
  4. Step 4: Simplify right side
    87,970.35x = 4,193,418,476.42
  5. Step 5: Solve for x
    x = 4,193,418,476.42/87,970.35
  6. Step 6: Final answer
    x = 47,668.54

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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.