Home / 76,826.84-115,164.48-36,799.60

Finding the Fourth Proportional to 76,826.84, 115,164.48 and 36,799.60

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Solution

The fourth proportional to 76,826.84, 115,164.48 and 36,799.60 is: 55,163.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,826.84 : 115,164.48 = 36,799.60 : x
  2. Step 2: Convert to fraction form
    76,826.84/115,164.48 = 36,799.60/x
  3. Step 3: Cross multiply
    76,826.84x = 115,164.48 × 36,799.60
  4. Step 4: Simplify right side
    76,826.84x = 4,238,006,798.21
  5. Step 5: Solve for x
    x = 4,238,006,798.21/76,826.84
  6. Step 6: Final answer
    x = 55,163.10

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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.