Home / 211,926.42-317,889.90-54,155.03

Finding the Fourth Proportional to 211,926.42, 317,889.90 and 54,155.03

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Solution

The fourth proportional to 211,926.42, 317,889.90 and 54,155.03 is: 81,232.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,926.42 : 317,889.90 = 54,155.03 : x
  2. Step 2: Convert to fraction form
    211,926.42/317,889.90 = 54,155.03/x
  3. Step 3: Cross multiply
    211,926.42x = 317,889.90 × 54,155.03
  4. Step 4: Simplify right side
    211,926.42x = 17,215,335,481.75
  5. Step 5: Solve for x
    x = 17,215,335,481.75/211,926.42
  6. Step 6: Final answer
    x = 81,232.61

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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.