Home / 76,745.23-115,143.46-34,044.77

Finding the Fourth Proportional to 76,745.23, 115,143.46 and 34,044.77

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Solution

The fourth proportional to 76,745.23, 115,143.46 and 34,044.77 is: 51,078.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,745.23 : 115,143.46 = 34,044.77 : x
  2. Step 2: Convert to fraction form
    76,745.23/115,143.46 = 34,044.77/x
  3. Step 3: Cross multiply
    76,745.23x = 115,143.46 × 34,044.77
  4. Step 4: Simplify right side
    76,745.23x = 3,920,031,951.87
  5. Step 5: Solve for x
    x = 3,920,031,951.87/76,745.23
  6. Step 6: Final answer
    x = 51,078.51

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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.