Home / 49,147.40-73,721.10-12,211.40

Finding the Fourth Proportional to 49,147.40, 73,721.10 and 12,211.40

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Solution

The fourth proportional to 49,147.40, 73,721.10 and 12,211.40 is: 18,317.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,147.40 : 73,721.10 = 12,211.40 : x
  2. Step 2: Convert to fraction form
    49,147.40/73,721.10 = 12,211.40/x
  3. Step 3: Cross multiply
    49,147.40x = 73,721.10 × 12,211.40
  4. Step 4: Simplify right side
    49,147.40x = 900,237,840.54
  5. Step 5: Solve for x
    x = 900,237,840.54/49,147.40
  6. Step 6: Final answer
    x = 18,317.10

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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.