Home / 76,190.78-114,461.37-53,753.09

Finding the Fourth Proportional to 76,190.78, 114,461.37 and 53,753.09

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Solution

The fourth proportional to 76,190.78, 114,461.37 and 53,753.09 is: 80,753.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,190.78 : 114,461.37 = 53,753.09 : x
  2. Step 2: Convert to fraction form
    76,190.78/114,461.37 = 53,753.09/x
  3. Step 3: Cross multiply
    76,190.78x = 114,461.37 × 53,753.09
  4. Step 4: Simplify right side
    76,190.78x = 6,152,651,750.83
  5. Step 5: Solve for x
    x = 6,152,651,750.83/76,190.78
  6. Step 6: Final answer
    x = 80,753.24

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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.