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Finding the Fourth Proportional to 54,295.58, 81,072 and 48,636.72

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Solution

The fourth proportional to 54,295.58, 81,072 and 48,636.72 is: 72,622.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,295.58 : 81,072 = 48,636.72 : x
  2. Step 2: Convert to fraction form
    54,295.58/81,072 = 48,636.72/x
  3. Step 3: Cross multiply
    54,295.58x = 81,072 × 48,636.72
  4. Step 4: Simplify right side
    54,295.58x = 3,943,076,163.84
  5. Step 5: Solve for x
    x = 3,943,076,163.84/54,295.58
  6. Step 6: Final answer
    x = 72,622.42

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.