Home / 49,147.31-73,720.98-12,211.31

Finding the Fourth Proportional to 49,147.31, 73,720.98 and 12,211.31

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Solution

The fourth proportional to 49,147.31, 73,720.98 and 12,211.31 is: 18,316.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,147.31 : 73,720.98 = 12,211.31 : x
  2. Step 2: Convert to fraction form
    49,147.31/73,720.98 = 12,211.31/x
  3. Step 3: Cross multiply
    49,147.31x = 73,720.98 × 12,211.31
  4. Step 4: Simplify right side
    49,147.31x = 900,229,924.59
  5. Step 5: Solve for x
    x = 900,229,924.59/49,147.31
  6. Step 6: Final answer
    x = 18,316.97

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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.