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Finding the Fourth Proportional to 81,840.69, 122,747.36 and 22,682.34

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Solution

The fourth proportional to 81,840.69, 122,747.36 and 22,682.34 is: 34,019.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,840.69 : 122,747.36 = 22,682.34 : x
  2. Step 2: Convert to fraction form
    81,840.69/122,747.36 = 22,682.34/x
  3. Step 3: Cross multiply
    81,840.69x = 122,747.36 × 22,682.34
  4. Step 4: Simplify right side
    81,840.69x = 2,784,197,240.21
  5. Step 5: Solve for x
    x = 2,784,197,240.21/81,840.69
  6. Step 6: Final answer
    x = 34,019.72

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1.5x scale

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.