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Finding the Fourth Proportional to 54,359.64, 81,551.88 and 19,299.24

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Solution

The fourth proportional to 54,359.64, 81,551.88 and 19,299.24 is: 28,953.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,359.64 : 81,551.88 = 19,299.24 : x
  2. Step 2: Convert to fraction form
    54,359.64/81,551.88 = 19,299.24/x
  3. Step 3: Cross multiply
    54,359.64x = 81,551.88 × 19,299.24
  4. Step 4: Simplify right side
    54,359.64x = 1,573,889,304.57
  5. Step 5: Solve for x
    x = 1,573,889,304.57/54,359.64
  6. Step 6: Final answer
    x = 28,953.27

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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.