Home / 75,968.20-113,865.40-47,518.08

Finding the Fourth Proportional to 75,968.20, 113,865.40 and 47,518.08

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Solution

The fourth proportional to 75,968.20, 113,865.40 and 47,518.08 is: 71,222.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,968.20 : 113,865.40 = 47,518.08 : x
  2. Step 2: Convert to fraction form
    75,968.20/113,865.40 = 47,518.08/x
  3. Step 3: Cross multiply
    75,968.20x = 113,865.40 × 47,518.08
  4. Step 4: Simplify right side
    75,968.20x = 5,410,665,186.43
  5. Step 5: Solve for x
    x = 5,410,665,186.43/75,968.20
  6. Step 6: Final answer
    x = 71,222.76

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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.