Home / 76,063.76-104,942.40-49,240.16

Finding the Fourth Proportional to 76,063.76, 104,942.40 and 49,240.16

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Solution

The fourth proportional to 76,063.76, 104,942.40 and 49,240.16 is: 67,934.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,063.76 : 104,942.40 = 49,240.16 : x
  2. Step 2: Convert to fraction form
    76,063.76/104,942.40 = 49,240.16/x
  3. Step 3: Cross multiply
    76,063.76x = 104,942.40 × 49,240.16
  4. Step 4: Simplify right side
    76,063.76x = 5,167,380,566.78
  5. Step 5: Solve for x
    x = 5,167,380,566.78/76,063.76
  6. Step 6: Final answer
    x = 67,934.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.