Home / 76,624.78-115,044.72-39,211.70

Finding the Fourth Proportional to 76,624.78, 115,044.72 and 39,211.70

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Solution

The fourth proportional to 76,624.78, 115,044.72 and 39,211.70 is: 58,872.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,624.78 : 115,044.72 = 39,211.70 : x
  2. Step 2: Convert to fraction form
    76,624.78/115,044.72 = 39,211.70/x
  3. Step 3: Cross multiply
    76,624.78x = 115,044.72 × 39,211.70
  4. Step 4: Simplify right side
    76,624.78x = 4,511,099,047.22
  5. Step 5: Solve for x
    x = 4,511,099,047.22/76,624.78
  6. Step 6: Final answer
    x = 58,872.59

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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.