Home / 54,631.08-81,815.40-31,186.44

Finding the Fourth Proportional to 54,631.08, 81,815.40 and 31,186.44

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Solution

The fourth proportional to 54,631.08, 81,815.40 and 31,186.44 is: 46,704.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,631.08 : 81,815.40 = 31,186.44 : x
  2. Step 2: Convert to fraction form
    54,631.08/81,815.40 = 31,186.44/x
  3. Step 3: Cross multiply
    54,631.08x = 81,815.40 × 31,186.44
  4. Step 4: Simplify right side
    54,631.08x = 2,551,531,063.18
  5. Step 5: Solve for x
    x = 2,551,531,063.18/54,631.08
  6. Step 6: Final answer
    x = 46,704.75

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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.