Home / 77,790.41-116,587.20-49,699.61

Finding the Fourth Proportional to 77,790.41, 116,587.20 and 49,699.61

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Solution

The fourth proportional to 77,790.41, 116,587.20 and 49,699.61 is: 74,486.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,790.41 : 116,587.20 = 49,699.61 : x
  2. Step 2: Convert to fraction form
    77,790.41/116,587.20 = 49,699.61/x
  3. Step 3: Cross multiply
    77,790.41x = 116,587.20 × 49,699.61
  4. Step 4: Simplify right side
    77,790.41x = 5,794,338,370.99
  5. Step 5: Solve for x
    x = 5,794,338,370.99/77,790.41
  6. Step 6: Final answer
    x = 74,486.54

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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.