Home / 76,786.57-105,929.25-44,935.75

Finding the Fourth Proportional to 76,786.57, 105,929.25 and 44,935.75

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Solution

The fourth proportional to 76,786.57, 105,929.25 and 44,935.75 is: 61,990.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,786.57 : 105,929.25 = 44,935.75 : x
  2. Step 2: Convert to fraction form
    76,786.57/105,929.25 = 44,935.75/x
  3. Step 3: Cross multiply
    76,786.57x = 105,929.25 × 44,935.75
  4. Step 4: Simplify right side
    76,786.57x = 4,760,010,295.69
  5. Step 5: Solve for x
    x = 4,760,010,295.69/76,786.57
  6. Step 6: Final answer
    x = 61,990.14

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1.5x scale

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.