Home / 81,531.42-122,198.04-59,289.36

Finding the Fourth Proportional to 81,531.42, 122,198.04 and 59,289.36

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Solution

The fourth proportional to 81,531.42, 122,198.04 and 59,289.36 is: 88,861.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,531.42 : 122,198.04 = 59,289.36 : x
  2. Step 2: Convert to fraction form
    81,531.42/122,198.04 = 59,289.36/x
  3. Step 3: Cross multiply
    81,531.42x = 122,198.04 × 59,289.36
  4. Step 4: Simplify right side
    81,531.42x = 7,245,043,584.85
  5. Step 5: Solve for x
    x = 7,245,043,584.85/81,531.42
  6. Step 6: Final answer
    x = 88,861.98

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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.