Home / 81,464.84-122,158.62-31,568.20

Finding the Fourth Proportional to 81,464.84, 122,158.62 and 31,568.20

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Solution

The fourth proportional to 81,464.84, 122,158.62 and 31,568.20 is: 47,337.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,464.84 : 122,158.62 = 31,568.20 : x
  2. Step 2: Convert to fraction form
    81,464.84/122,158.62 = 31,568.20/x
  3. Step 3: Cross multiply
    81,464.84x = 122,158.62 × 31,568.20
  4. Step 4: Simplify right side
    81,464.84x = 3,856,327,747.88
  5. Step 5: Solve for x
    x = 3,856,327,747.88/81,464.84
  6. Step 6: Final answer
    x = 47,337.33

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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.