Home / 74,289.72-111,288.78-43,059.36

Finding the Fourth Proportional to 74,289.72, 111,288.78 and 43,059.36

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Solution

The fourth proportional to 74,289.72, 111,288.78 and 43,059.36 is: 64,504.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,289.72 : 111,288.78 = 43,059.36 : x
  2. Step 2: Convert to fraction form
    74,289.72/111,288.78 = 43,059.36/x
  3. Step 3: Cross multiply
    74,289.72x = 111,288.78 × 43,059.36
  4. Step 4: Simplify right side
    74,289.72x = 4,792,023,641.98
  5. Step 5: Solve for x
    x = 4,792,023,641.98/74,289.72
  6. Step 6: Final answer
    x = 64,504.53

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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.