Home / 81,986.21-113,145.83-50,161.26

Finding the Fourth Proportional to 81,986.21, 113,145.83 and 50,161.26

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Solution

The fourth proportional to 81,986.21, 113,145.83 and 50,161.26 is: 69,225.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,986.21 : 113,145.83 = 50,161.26 : x
  2. Step 2: Convert to fraction form
    81,986.21/113,145.83 = 50,161.26/x
  3. Step 3: Cross multiply
    81,986.21x = 113,145.83 × 50,161.26
  4. Step 4: Simplify right side
    81,986.21x = 5,675,537,145.74
  5. Step 5: Solve for x
    x = 5,675,537,145.74/81,986.21
  6. Step 6: Final answer
    x = 69,225.51

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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.