Home / 66,631.44-99,996.28-31,570.96

Finding the Fourth Proportional to 66,631.44, 99,996.28 and 31,570.96

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Solution

The fourth proportional to 66,631.44, 99,996.28 and 31,570.96 is: 47,379.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,631.44 : 99,996.28 = 31,570.96 : x
  2. Step 2: Convert to fraction form
    66,631.44/99,996.28 = 31,570.96/x
  3. Step 3: Cross multiply
    66,631.44x = 99,996.28 × 31,570.96
  4. Step 4: Simplify right side
    66,631.44x = 3,156,978,556.03
  5. Step 5: Solve for x
    x = 3,156,978,556.03/66,631.44
  6. Step 6: Final answer
    x = 47,379.71

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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.