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Finding the Fourth Proportional to 80,443.98, 120,541.14 and 30,497.22

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Solution

The fourth proportional to 80,443.98, 120,541.14 and 30,497.22 is: 45,698.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,443.98 : 120,541.14 = 30,497.22 : x
  2. Step 2: Convert to fraction form
    80,443.98/120,541.14 = 30,497.22/x
  3. Step 3: Cross multiply
    80,443.98x = 120,541.14 × 30,497.22
  4. Step 4: Simplify right side
    80,443.98x = 3,676,169,665.63
  5. Step 5: Solve for x
    x = 3,676,169,665.63/80,443.98
  6. Step 6: Final answer
    x = 45,698.51

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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.