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Finding the Fourth Proportional to 54,273.60, 81,604.80 and 53,107.20

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Solution

The fourth proportional to 54,273.60, 81,604.80 and 53,107.20 is: 79,851.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,273.60 : 81,604.80 = 53,107.20 : x
  2. Step 2: Convert to fraction form
    54,273.60/81,604.80 = 53,107.20/x
  3. Step 3: Cross multiply
    54,273.60x = 81,604.80 × 53,107.20
  4. Step 4: Simplify right side
    54,273.60x = 4,333,802,434.56
  5. Step 5: Solve for x
    x = 4,333,802,434.56/54,273.60
  6. Step 6: Final answer
    x = 79,851.02

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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.