Home / 76,318.63-105,228.18-49,451.33

Finding the Fourth Proportional to 76,318.63, 105,228.18 and 49,451.33

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Solution

The fourth proportional to 76,318.63, 105,228.18 and 49,451.33 is: 68,183.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,318.63 : 105,228.18 = 49,451.33 : x
  2. Step 2: Convert to fraction form
    76,318.63/105,228.18 = 49,451.33/x
  3. Step 3: Cross multiply
    76,318.63x = 105,228.18 × 49,451.33
  4. Step 4: Simplify right side
    76,318.63x = 5,203,673,717.55
  5. Step 5: Solve for x
    x = 5,203,673,717.55/76,318.63
  6. Step 6: Final answer
    x = 68,183.53

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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.