Home / 77,850.86-116,776.26-31,136.54

Finding the Fourth Proportional to 77,850.86, 116,776.26 and 31,136.54

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Solution

The fourth proportional to 77,850.86, 116,776.26 and 31,136.54 is: 46,704.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,850.86 : 116,776.26 = 31,136.54 : x
  2. Step 2: Convert to fraction form
    77,850.86/116,776.26 = 31,136.54/x
  3. Step 3: Cross multiply
    77,850.86x = 116,776.26 × 31,136.54
  4. Step 4: Simplify right side
    77,850.86x = 3,636,008,106.66
  5. Step 5: Solve for x
    x = 3,636,008,106.66/77,850.86
  6. Step 6: Final answer
    x = 46,704.79

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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.