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Finding the Fourth Proportional to 48,080.80, 72,072.60 and 21,804.40

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Solution

The fourth proportional to 48,080.80, 72,072.60 and 21,804.40 is: 32,684.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,080.80 : 72,072.60 = 21,804.40 : x
  2. Step 2: Convert to fraction form
    48,080.80/72,072.60 = 21,804.40/x
  3. Step 3: Cross multiply
    48,080.80x = 72,072.60 × 21,804.40
  4. Step 4: Simplify right side
    48,080.80x = 1,571,499,799.44
  5. Step 5: Solve for x
    x = 1,571,499,799.44/48,080.80
  6. Step 6: Final answer
    x = 32,684.56

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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.