Home / 43,079.78-64,622.75-11,489.67

Finding the Fourth Proportional to 43,079.78, 64,622.75 and 11,489.67

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Solution

The fourth proportional to 43,079.78, 64,622.75 and 11,489.67 is: 17,235.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,079.78 : 64,622.75 = 11,489.67 : x
  2. Step 2: Convert to fraction form
    43,079.78/64,622.75 = 11,489.67/x
  3. Step 3: Cross multiply
    43,079.78x = 64,622.75 × 11,489.67
  4. Step 4: Simplify right side
    43,079.78x = 742,494,014.54
  5. Step 5: Solve for x
    x = 742,494,014.54/43,079.78
  6. Step 6: Final answer
    x = 17,235.33

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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.