Home / 76,745.80-115,042.38-32,383.72

Finding the Fourth Proportional to 76,745.80, 115,042.38 and 32,383.72

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Solution

The fourth proportional to 76,745.80, 115,042.38 and 32,383.72 is: 48,543.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,745.80 : 115,042.38 = 32,383.72 : x
  2. Step 2: Convert to fraction form
    76,745.80/115,042.38 = 32,383.72/x
  3. Step 3: Cross multiply
    76,745.80x = 115,042.38 × 32,383.72
  4. Step 4: Simplify right side
    76,745.80x = 3,725,500,222.05
  5. Step 5: Solve for x
    x = 3,725,500,222.05/76,745.80
  6. Step 6: Final answer
    x = 48,543.38

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1.5x scale

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.