Home / 87,862.91-131,795.99-31,707.23

Finding the Fourth Proportional to 87,862.91, 131,795.99 and 31,707.23

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Solution

The fourth proportional to 87,862.91, 131,795.99 and 31,707.23 is: 47,561.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,862.91 : 131,795.99 = 31,707.23 : x
  2. Step 2: Convert to fraction form
    87,862.91/131,795.99 = 31,707.23/x
  3. Step 3: Cross multiply
    87,862.91x = 131,795.99 × 31,707.23
  4. Step 4: Simplify right side
    87,862.91x = 4,178,885,721.57
  5. Step 5: Solve for x
    x = 4,178,885,721.57/87,862.91
  6. Step 6: Final answer
    x = 47,561.43

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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.