Home / 211,889.40-317,834.06-54,112.20

Finding the Fourth Proportional to 211,889.40, 317,834.06 and 54,112.20

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Solution

The fourth proportional to 211,889.40, 317,834.06 and 54,112.20 is: 81,168.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,889.40 : 317,834.06 = 54,112.20 : x
  2. Step 2: Convert to fraction form
    211,889.40/317,834.06 = 54,112.20/x
  3. Step 3: Cross multiply
    211,889.40x = 317,834.06 × 54,112.20
  4. Step 4: Simplify right side
    211,889.40x = 17,198,700,221.53
  5. Step 5: Solve for x
    x = 17,198,700,221.53/211,889.40
  6. Step 6: Final answer
    x = 81,168.29

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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.