Home / 81,883.08-122,817.56-49,853.85

Finding the Fourth Proportional to 81,883.08, 122,817.56 and 49,853.85

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Solution

The fourth proportional to 81,883.08, 122,817.56 and 49,853.85 is: 74,776.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,883.08 : 122,817.56 = 49,853.85 : x
  2. Step 2: Convert to fraction form
    81,883.08/122,817.56 = 49,853.85/x
  3. Step 3: Cross multiply
    81,883.08x = 122,817.56 × 49,853.85
  4. Step 4: Simplify right side
    81,883.08x = 6,122,928,338.24
  5. Step 5: Solve for x
    x = 6,122,928,338.24/81,883.08
  6. Step 6: Final answer
    x = 74,776.48

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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.