Home / 76,141.26-105,040.06-49,292.42

Finding the Fourth Proportional to 76,141.26, 105,040.06 and 49,292.42

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Solution

The fourth proportional to 76,141.26, 105,040.06 and 49,292.42 is: 68,000.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,141.26 : 105,040.06 = 49,292.42 : x
  2. Step 2: Convert to fraction form
    76,141.26/105,040.06 = 49,292.42/x
  3. Step 3: Cross multiply
    76,141.26x = 105,040.06 × 49,292.42
  4. Step 4: Simplify right side
    76,141.26x = 5,177,678,105.91
  5. Step 5: Solve for x
    x = 5,177,678,105.91/76,141.26
  6. Step 6: Final answer
    x = 68,000.95

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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.