Home / 76,512.62-105,542.43-53,884.46

Finding the Fourth Proportional to 76,512.62, 105,542.43 and 53,884.46

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Solution

The fourth proportional to 76,512.62, 105,542.43 and 53,884.46 is: 74,328.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,512.62 : 105,542.43 = 53,884.46 : x
  2. Step 2: Convert to fraction form
    76,512.62/105,542.43 = 53,884.46/x
  3. Step 3: Cross multiply
    76,512.62x = 105,542.43 × 53,884.46
  4. Step 4: Simplify right side
    76,512.62x = 5,687,096,847.64
  5. Step 5: Solve for x
    x = 5,687,096,847.64/76,512.62
  6. Step 6: Final answer
    x = 74,328.87

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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.