Home / 69,616.20-104,320.62-39,989.64

Finding the Fourth Proportional to 69,616.20, 104,320.62 and 39,989.64

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Solution

The fourth proportional to 69,616.20, 104,320.62 and 39,989.64 is: 59,924.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,616.20 : 104,320.62 = 39,989.64 : x
  2. Step 2: Convert to fraction form
    69,616.20/104,320.62 = 39,989.64/x
  3. Step 3: Cross multiply
    69,616.20x = 104,320.62 × 39,989.64
  4. Step 4: Simplify right side
    69,616.20x = 4,171,744,038.38
  5. Step 5: Solve for x
    x = 4,171,744,038.38/69,616.20
  6. Step 6: Final answer
    x = 59,924.90

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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.