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Finding the Fourth Proportional to 54,323.20, 81,492.90 and 19,260.10

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Solution

The fourth proportional to 54,323.20, 81,492.90 and 19,260.10 is: 28,893.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,323.20 : 81,492.90 = 19,260.10 : x
  2. Step 2: Convert to fraction form
    54,323.20/81,492.90 = 19,260.10/x
  3. Step 3: Cross multiply
    54,323.20x = 81,492.90 × 19,260.10
  4. Step 4: Simplify right side
    54,323.20x = 1,569,561,403.29
  5. Step 5: Solve for x
    x = 1,569,561,403.29/54,323.20
  6. Step 6: Final answer
    x = 28,893.02

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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.