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Finding the Fourth Proportional to 48,394.80, 72,614.88 and 18,804.96

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Solution

The fourth proportional to 48,394.80, 72,614.88 and 18,804.96 is: 28,216.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,394.80 : 72,614.88 = 18,804.96 : x
  2. Step 2: Convert to fraction form
    48,394.80/72,614.88 = 18,804.96/x
  3. Step 3: Cross multiply
    48,394.80x = 72,614.88 × 18,804.96
  4. Step 4: Simplify right side
    48,394.80x = 1,365,519,913.80
  5. Step 5: Solve for x
    x = 1,365,519,913.80/48,394.80
  6. Step 6: Final answer
    x = 28,216.25

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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.