Home / 76,960.10-115,231.62-39,946.34

Finding the Fourth Proportional to 76,960.10, 115,231.62 and 39,946.34

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Solution

The fourth proportional to 76,960.10, 115,231.62 and 39,946.34 is: 59,811.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,960.10 : 115,231.62 = 39,946.34 : x
  2. Step 2: Convert to fraction form
    76,960.10/115,231.62 = 39,946.34/x
  3. Step 3: Cross multiply
    76,960.10x = 115,231.62 × 39,946.34
  4. Step 4: Simplify right side
    76,960.10x = 4,603,081,471.27
  5. Step 5: Solve for x
    x = 4,603,081,471.27/76,960.10
  6. Step 6: Final answer
    x = 59,811.27

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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.