Home / 74,271.90-111,506.73-43,129.50

Finding the Fourth Proportional to 74,271.90, 111,506.73 and 43,129.50

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Solution

The fourth proportional to 74,271.90, 111,506.73 and 43,129.50 is: 64,751.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,271.90 : 111,506.73 = 43,129.50 : x
  2. Step 2: Convert to fraction form
    74,271.90/111,506.73 = 43,129.50/x
  3. Step 3: Cross multiply
    74,271.90x = 111,506.73 × 43,129.50
  4. Step 4: Simplify right side
    74,271.90x = 4,809,229,511.54
  5. Step 5: Solve for x
    x = 4,809,229,511.54/74,271.90
  6. Step 6: Final answer
    x = 64,751.67

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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.