Home / 71,991.24-99,347.22-39,726.15

Finding the Fourth Proportional to 71,991.24, 99,347.22 and 39,726.15

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Solution

The fourth proportional to 71,991.24, 99,347.22 and 39,726.15 is: 54,821.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,991.24 : 99,347.22 = 39,726.15 : x
  2. Step 2: Convert to fraction form
    71,991.24/99,347.22 = 39,726.15/x
  3. Step 3: Cross multiply
    71,991.24x = 99,347.22 × 39,726.15
  4. Step 4: Simplify right side
    71,991.24x = 3,946,682,563.80
  5. Step 5: Solve for x
    x = 3,946,682,563.80/71,991.24
  6. Step 6: Final answer
    x = 54,821.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.