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Finding the Fourth Proportional to 81,993.84, 122,990.85 and 22,829.64

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Solution

The fourth proportional to 81,993.84, 122,990.85 and 22,829.64 is: 34,244.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,993.84 : 122,990.85 = 22,829.64 : x
  2. Step 2: Convert to fraction form
    81,993.84/122,990.85 = 22,829.64/x
  3. Step 3: Cross multiply
    81,993.84x = 122,990.85 × 22,829.64
  4. Step 4: Simplify right side
    81,993.84x = 2,807,836,828.79
  5. Step 5: Solve for x
    x = 2,807,836,828.79/81,993.84
  6. Step 6: Final answer
    x = 34,244.49

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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.