Home / 77,225.87-115,620.41-49,076.15

Finding the Fourth Proportional to 77,225.87, 115,620.41 and 49,076.15

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Solution

The fourth proportional to 77,225.87, 115,620.41 and 49,076.15 is: 73,475.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,225.87 : 115,620.41 = 49,076.15 : x
  2. Step 2: Convert to fraction form
    77,225.87/115,620.41 = 49,076.15/x
  3. Step 3: Cross multiply
    77,225.87x = 115,620.41 × 49,076.15
  4. Step 4: Simplify right side
    77,225.87x = 5,674,204,128.81
  5. Step 5: Solve for x
    x = 5,674,204,128.81/77,225.87
  6. Step 6: Final answer
    x = 73,475.43

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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.