Home / 81,898.41-122,842.76-48,183.39

Finding the Fourth Proportional to 81,898.41, 122,842.76 and 48,183.39

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Solution

The fourth proportional to 81,898.41, 122,842.76 and 48,183.39 is: 72,272.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,898.41 : 122,842.76 = 48,183.39 : x
  2. Step 2: Convert to fraction form
    81,898.41/122,842.76 = 48,183.39/x
  3. Step 3: Cross multiply
    81,898.41x = 122,842.76 × 48,183.39
  4. Step 4: Simplify right side
    81,898.41x = 5,918,980,372.84
  5. Step 5: Solve for x
    x = 5,918,980,372.84/81,898.41
  6. Step 6: Final answer
    x = 72,272.23

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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.