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Finding the Fourth Proportional to 54,556.60, 81,815.70 and 19,497.40

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Solution

The fourth proportional to 54,556.60, 81,815.70 and 19,497.40 is: 29,239.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,556.60 : 81,815.70 = 19,497.40 : x
  2. Step 2: Convert to fraction form
    54,556.60/81,815.70 = 19,497.40/x
  3. Step 3: Cross multiply
    54,556.60x = 81,815.70 × 19,497.40
  4. Step 4: Simplify right side
    54,556.60x = 1,595,193,429.18
  5. Step 5: Solve for x
    x = 1,595,193,429.18/54,556.60
  6. Step 6: Final answer
    x = 29,239.24

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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.