Home / 42,942.44-64,388.40-19,556.12

Finding the Fourth Proportional to 42,942.44, 64,388.40 and 19,556.12

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Solution

The fourth proportional to 42,942.44, 64,388.40 and 19,556.12 is: 29,322.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,942.44 : 64,388.40 = 19,556.12 : x
  2. Step 2: Convert to fraction form
    42,942.44/64,388.40 = 19,556.12/x
  3. Step 3: Cross multiply
    42,942.44x = 64,388.40 × 19,556.12
  4. Step 4: Simplify right side
    42,942.44x = 1,259,187,277.01
  5. Step 5: Solve for x
    x = 1,259,187,277.01/42,942.44
  6. Step 6: Final answer
    x = 29,322.68

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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.