Home / 57,679.87-86,533.27-19,729.44

Finding the Fourth Proportional to 57,679.87, 86,533.27 and 19,729.44

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Solution

The fourth proportional to 57,679.87, 86,533.27 and 19,729.44 is: 29,598.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,679.87 : 86,533.27 = 19,729.44 : x
  2. Step 2: Convert to fraction form
    57,679.87/86,533.27 = 19,729.44/x
  3. Step 3: Cross multiply
    57,679.87x = 86,533.27 × 19,729.44
  4. Step 4: Simplify right side
    57,679.87x = 1,707,252,958.47
  5. Step 5: Solve for x
    x = 1,707,252,958.47/57,679.87
  6. Step 6: Final answer
    x = 29,598.77

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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.