Home / 212,773.30-319,170.88-55,003.12

Finding the Fourth Proportional to 212,773.30, 319,170.88 and 55,003.12

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Solution

The fourth proportional to 212,773.30, 319,170.88 and 55,003.12 is: 82,507.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,773.30 : 319,170.88 = 55,003.12 : x
  2. Step 2: Convert to fraction form
    212,773.30/319,170.88 = 55,003.12/x
  3. Step 3: Cross multiply
    212,773.30x = 319,170.88 × 55,003.12
  4. Step 4: Simplify right side
    212,773.30x = 17,555,393,483.97
  5. Step 5: Solve for x
    x = 17,555,393,483.97/212,773.30
  6. Step 6: Final answer
    x = 82,507.50

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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.