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Finding the Fourth Proportional to 54,340.52, 81,520.19 and 18,313.52

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Solution

The fourth proportional to 54,340.52, 81,520.19 and 18,313.52 is: 27,473.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,340.52 : 81,520.19 = 18,313.52 : x
  2. Step 2: Convert to fraction form
    54,340.52/81,520.19 = 18,313.52/x
  3. Step 3: Cross multiply
    54,340.52x = 81,520.19 × 18,313.52
  4. Step 4: Simplify right side
    54,340.52x = 1,492,921,538.40
  5. Step 5: Solve for x
    x = 1,492,921,538.40/54,340.52
  6. Step 6: Final answer
    x = 27,473.45

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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.