Home / 69,487.20-104,119.56-67,641.89

Finding the Fourth Proportional to 69,487.20, 104,119.56 and 67,641.89

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Solution

The fourth proportional to 69,487.20, 104,119.56 and 67,641.89 is: 101,354.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,487.20 : 104,119.56 = 67,641.89 : x
  2. Step 2: Convert to fraction form
    69,487.20/104,119.56 = 67,641.89/x
  3. Step 3: Cross multiply
    69,487.20x = 104,119.56 × 67,641.89
  4. Step 4: Simplify right side
    69,487.20x = 7,042,843,303.77
  5. Step 5: Solve for x
    x = 7,042,843,303.77/69,487.20
  6. Step 6: Final answer
    x = 101,354.54

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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.