Home / 75,986.15-113,815.20-49,414.10

Finding the Fourth Proportional to 75,986.15, 113,815.20 and 49,414.10

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Solution

The fourth proportional to 75,986.15, 113,815.20 and 49,414.10 is: 74,014.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,986.15 : 113,815.20 = 49,414.10 : x
  2. Step 2: Convert to fraction form
    75,986.15/113,815.20 = 49,414.10/x
  3. Step 3: Cross multiply
    75,986.15x = 113,815.20 × 49,414.10
  4. Step 4: Simplify right side
    75,986.15x = 5,624,075,674.32
  5. Step 5: Solve for x
    x = 5,624,075,674.32/75,986.15
  6. Step 6: Final answer
    x = 74,014.48

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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.