Home / 211,845.40-317,767.74-54,073.80

Finding the Fourth Proportional to 211,845.40, 317,767.74 and 54,073.80

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Solution

The fourth proportional to 211,845.40, 317,767.74 and 54,073.80 is: 81,110.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,845.40 : 317,767.74 = 54,073.80 : x
  2. Step 2: Convert to fraction form
    211,845.40/317,767.74 = 54,073.80/x
  3. Step 3: Cross multiply
    211,845.40x = 317,767.74 × 54,073.80
  4. Step 4: Simplify right side
    211,845.40x = 17,182,909,219.21
  5. Step 5: Solve for x
    x = 17,182,909,219.21/211,845.40
  6. Step 6: Final answer
    x = 81,110.61

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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.