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Finding the Fourth Proportional to 81,482.32, 122,277.71 and 33,490.29

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Solution

The fourth proportional to 81,482.32, 122,277.71 and 33,490.29 is: 50,257.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,482.32 : 122,277.71 = 33,490.29 : x
  2. Step 2: Convert to fraction form
    81,482.32/122,277.71 = 33,490.29/x
  3. Step 3: Cross multiply
    81,482.32x = 122,277.71 × 33,490.29
  4. Step 4: Simplify right side
    81,482.32x = 4,095,115,968.44
  5. Step 5: Solve for x
    x = 4,095,115,968.44/81,482.32
  6. Step 6: Final answer
    x = 50,257.72

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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.