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Finding the Fourth Proportional to 81,583.58, 122,412.08 and 44,099.76

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Solution

The fourth proportional to 81,583.58, 122,412.08 and 44,099.76 is: 66,169.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,583.58 : 122,412.08 = 44,099.76 : x
  2. Step 2: Convert to fraction form
    81,583.58/122,412.08 = 44,099.76/x
  3. Step 3: Cross multiply
    81,583.58x = 122,412.08 × 44,099.76
  4. Step 4: Simplify right side
    81,583.58x = 5,398,343,349.10
  5. Step 5: Solve for x
    x = 5,398,343,349.10/81,583.58
  6. Step 6: Final answer
    x = 66,169.48

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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.