Home / 79,687.52-109,922.88-49,827.68

Finding the Fourth Proportional to 79,687.52, 109,922.88 and 49,827.68

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Solution

The fourth proportional to 79,687.52, 109,922.88 and 49,827.68 is: 68,733.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,687.52 : 109,922.88 = 49,827.68 : x
  2. Step 2: Convert to fraction form
    79,687.52/109,922.88 = 49,827.68/x
  3. Step 3: Cross multiply
    79,687.52x = 109,922.88 × 49,827.68
  4. Step 4: Simplify right side
    79,687.52x = 5,477,202,089.32
  5. Step 5: Solve for x
    x = 5,477,202,089.32/79,687.52
  6. Step 6: Final answer
    x = 68,733.50

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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.