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Finding the Fourth Proportional to 81,670.37, 122,509.74 and 22,504.73

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Solution

The fourth proportional to 81,670.37, 122,509.74 and 22,504.73 is: 33,758.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,670.37 : 122,509.74 = 22,504.73 : x
  2. Step 2: Convert to fraction form
    81,670.37/122,509.74 = 22,504.73/x
  3. Step 3: Cross multiply
    81,670.37x = 122,509.74 × 22,504.73
  4. Step 4: Simplify right side
    81,670.37x = 2,757,048,621.07
  5. Step 5: Solve for x
    x = 2,757,048,621.07/81,670.37
  6. Step 6: Final answer
    x = 33,758.25

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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.