Home / 81,887.88-112,982.57-49,173.85

Finding the Fourth Proportional to 81,887.88, 112,982.57 and 49,173.85

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Solution

The fourth proportional to 81,887.88, 112,982.57 and 49,173.85 is: 67,846.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,887.88 : 112,982.57 = 49,173.85 : x
  2. Step 2: Convert to fraction form
    81,887.88/112,982.57 = 49,173.85/x
  3. Step 3: Cross multiply
    81,887.88x = 112,982.57 × 49,173.85
  4. Step 4: Simplify right side
    81,887.88x = 5,555,788,247.30
  5. Step 5: Solve for x
    x = 5,555,788,247.30/81,887.88
  6. Step 6: Final answer
    x = 67,846.28

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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.