Home / 55,321.07-82,942.40-30,372.86

Finding the Fourth Proportional to 55,321.07, 82,942.40 and 30,372.86

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Solution

The fourth proportional to 55,321.07, 82,942.40 and 30,372.86 is: 45,537.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,321.07 : 82,942.40 = 30,372.86 : x
  2. Step 2: Convert to fraction form
    55,321.07/82,942.40 = 30,372.86/x
  3. Step 3: Cross multiply
    55,321.07x = 82,942.40 × 30,372.86
  4. Step 4: Simplify right side
    55,321.07x = 2,519,197,336.69
  5. Step 5: Solve for x
    x = 2,519,197,336.69/55,321.07
  6. Step 6: Final answer
    x = 45,537.76

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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.