Home / 45,947.55-68,918.76-12,212.67

Finding the Fourth Proportional to 45,947.55, 68,918.76 and 12,212.67

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Solution

The fourth proportional to 45,947.55, 68,918.76 and 12,212.67 is: 18,318.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,947.55 : 68,918.76 = 12,212.67 : x
  2. Step 2: Convert to fraction form
    45,947.55/68,918.76 = 12,212.67/x
  3. Step 3: Cross multiply
    45,947.55x = 68,918.76 × 12,212.67
  4. Step 4: Simplify right side
    45,947.55x = 841,682,072.69
  5. Step 5: Solve for x
    x = 841,682,072.69/45,947.55
  6. Step 6: Final answer
    x = 18,318.32

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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.