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Finding the Fourth Proportional to 54,371.60, 81,427.80 and 33,376.40

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Solution

The fourth proportional to 54,371.60, 81,427.80 and 33,376.40 is: 49,985.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,371.60 : 81,427.80 = 33,376.40 : x
  2. Step 2: Convert to fraction form
    54,371.60/81,427.80 = 33,376.40/x
  3. Step 3: Cross multiply
    54,371.60x = 81,427.80 × 33,376.40
  4. Step 4: Simplify right side
    54,371.60x = 2,717,766,823.92
  5. Step 5: Solve for x
    x = 2,717,766,823.92/54,371.60
  6. Step 6: Final answer
    x = 49,985.04

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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.