Home / 212,858.42-319,287.62-55,086.41

Finding the Fourth Proportional to 212,858.42, 319,287.62 and 55,086.41

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Solution

The fourth proportional to 212,858.42, 319,287.62 and 55,086.41 is: 82,629.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,858.42 : 319,287.62 = 55,086.41 : x
  2. Step 2: Convert to fraction form
    212,858.42/319,287.62 = 55,086.41/x
  3. Step 3: Cross multiply
    212,858.42x = 319,287.62 × 55,086.41
  4. Step 4: Simplify right side
    212,858.42x = 17,588,409,679.18
  5. Step 5: Solve for x
    x = 17,588,409,679.18/212,858.42
  6. Step 6: Final answer
    x = 82,629.62

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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.