Home / 51,919.96-71,644.62-30,406.36

Finding the Fourth Proportional to 51,919.96, 71,644.62 and 30,406.36

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Solution

The fourth proportional to 51,919.96, 71,644.62 and 30,406.36 is: 41,957.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,919.96 : 71,644.62 = 30,406.36 : x
  2. Step 2: Convert to fraction form
    51,919.96/71,644.62 = 30,406.36/x
  3. Step 3: Cross multiply
    51,919.96x = 71,644.62 × 30,406.36
  4. Step 4: Simplify right side
    51,919.96x = 2,178,452,107.78
  5. Step 5: Solve for x
    x = 2,178,452,107.78/51,919.96
  6. Step 6: Final answer
    x = 41,957.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.