Home / 211,590.63-317,384.55-53,817.75

Finding the Fourth Proportional to 211,590.63, 317,384.55 and 53,817.75

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Solution

The fourth proportional to 211,590.63, 317,384.55 and 53,817.75 is: 80,726.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,590.63 : 317,384.55 = 53,817.75 : x
  2. Step 2: Convert to fraction form
    211,590.63/317,384.55 = 53,817.75/x
  3. Step 3: Cross multiply
    211,590.63x = 317,384.55 × 53,817.75
  4. Step 4: Simplify right side
    211,590.63x = 17,080,922,365.76
  5. Step 5: Solve for x
    x = 17,080,922,365.76/211,590.63
  6. Step 6: Final answer
    x = 80,726.27

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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.