Home / 69,985.57-104,956.82-20,052.28

Finding the Fourth Proportional to 69,985.57, 104,956.82 and 20,052.28

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Solution

The fourth proportional to 69,985.57, 104,956.82 and 20,052.28 is: 30,072.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,985.57 : 104,956.82 = 20,052.28 : x
  2. Step 2: Convert to fraction form
    69,985.57/104,956.82 = 20,052.28/x
  3. Step 3: Cross multiply
    69,985.57x = 104,956.82 × 20,052.28
  4. Step 4: Simplify right side
    69,985.57x = 2,104,623,704.68
  5. Step 5: Solve for x
    x = 2,104,623,704.68/69,985.57
  6. Step 6: Final answer
    x = 30,072.25

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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.