Home / 211,861.48-317,791.74-54,089.80

Finding the Fourth Proportional to 211,861.48, 317,791.74 and 54,089.80

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Solution

The fourth proportional to 211,861.48, 317,791.74 and 54,089.80 is: 81,134.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,861.48 : 317,791.74 = 54,089.80 : x
  2. Step 2: Convert to fraction form
    211,861.48/317,791.74 = 54,089.80/x
  3. Step 3: Cross multiply
    211,861.48x = 317,791.74 × 54,089.80
  4. Step 4: Simplify right side
    211,861.48x = 17,189,291,658.25
  5. Step 5: Solve for x
    x = 17,189,291,658.25/211,861.48
  6. Step 6: Final answer
    x = 81,134.58

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1.5x scale

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.