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Finding the Fourth Proportional to 54,245.79, 81,381.58 and 22,638.28

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Solution

The fourth proportional to 54,245.79, 81,381.58 and 22,638.28 is: 33,962.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,245.79 : 81,381.58 = 22,638.28 : x
  2. Step 2: Convert to fraction form
    54,245.79/81,381.58 = 22,638.28/x
  3. Step 3: Cross multiply
    54,245.79x = 81,381.58 × 22,638.28
  4. Step 4: Simplify right side
    54,245.79x = 1,842,338,994.88
  5. Step 5: Solve for x
    x = 1,842,338,994.88/54,245.79
  6. Step 6: Final answer
    x = 33,962.80

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.