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Finding the Fourth Proportional to 54,599.40, 81,918.81 and 19,065.96

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Solution

The fourth proportional to 54,599.40, 81,918.81 and 19,065.96 is: 28,605.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,599.40 : 81,918.81 = 19,065.96 : x
  2. Step 2: Convert to fraction form
    54,599.40/81,918.81 = 19,065.96/x
  3. Step 3: Cross multiply
    54,599.40x = 81,918.81 × 19,065.96
  4. Step 4: Simplify right side
    54,599.40x = 1,561,860,524.31
  5. Step 5: Solve for x
    x = 1,561,860,524.31/54,599.40
  6. Step 6: Final answer
    x = 28,605.82

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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.