Home / 52,704.57-78,930.18-30,146.86

Finding the Fourth Proportional to 52,704.57, 78,930.18 and 30,146.86

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Solution

The fourth proportional to 52,704.57, 78,930.18 and 30,146.86 is: 45,147.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,704.57 : 78,930.18 = 30,146.86 : x
  2. Step 2: Convert to fraction form
    52,704.57/78,930.18 = 30,146.86/x
  3. Step 3: Cross multiply
    52,704.57x = 78,930.18 × 30,146.86
  4. Step 4: Simplify right side
    52,704.57x = 2,379,497,208.19
  5. Step 5: Solve for x
    x = 2,379,497,208.19/52,704.57
  6. Step 6: Final answer
    x = 45,147.83

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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.