Home / 42,748.87-64,120.26-13,163.62

Finding the Fourth Proportional to 42,748.87, 64,120.26 and 13,163.62

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Solution

The fourth proportional to 42,748.87, 64,120.26 and 13,163.62 is: 19,744.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,748.87 : 64,120.26 = 13,163.62 : x
  2. Step 2: Convert to fraction form
    42,748.87/64,120.26 = 13,163.62/x
  3. Step 3: Cross multiply
    42,748.87x = 64,120.26 × 13,163.62
  4. Step 4: Simplify right side
    42,748.87x = 844,054,576.64
  5. Step 5: Solve for x
    x = 844,054,576.64/42,748.87
  6. Step 6: Final answer
    x = 19,744.49

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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.