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Finding the Fourth Proportional to 54,818.40, 82,227.60 and 47,906.40

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Solution

The fourth proportional to 54,818.40, 82,227.60 and 47,906.40 is: 71,859.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,818.40 : 82,227.60 = 47,906.40 : x
  2. Step 2: Convert to fraction form
    54,818.40/82,227.60 = 47,906.40/x
  3. Step 3: Cross multiply
    54,818.40x = 82,227.60 × 47,906.40
  4. Step 4: Simplify right side
    54,818.40x = 3,939,228,296.64
  5. Step 5: Solve for x
    x = 3,939,228,296.64/54,818.40
  6. Step 6: Final answer
    x = 71,859.60

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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.