Home / 55,369.23-83,064.78-20,309.19

Finding the Fourth Proportional to 55,369.23, 83,064.78 and 20,309.19

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Solution

The fourth proportional to 55,369.23, 83,064.78 and 20,309.19 is: 30,467.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,369.23 : 83,064.78 = 20,309.19 : x
  2. Step 2: Convert to fraction form
    55,369.23/83,064.78 = 20,309.19/x
  3. Step 3: Cross multiply
    55,369.23x = 83,064.78 × 20,309.19
  4. Step 4: Simplify right side
    55,369.23x = 1,686,978,399.33
  5. Step 5: Solve for x
    x = 1,686,978,399.33/55,369.23
  6. Step 6: Final answer
    x = 30,467.80

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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.