Home / 69,995.12-104,977.08-20,075

Finding the Fourth Proportional to 69,995.12, 104,977.08 and 20,075

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Solution

The fourth proportional to 69,995.12, 104,977.08 and 20,075 is: 30,108.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,995.12 : 104,977.08 = 20,075 : x
  2. Step 2: Convert to fraction form
    69,995.12/104,977.08 = 20,075/x
  3. Step 3: Cross multiply
    69,995.12x = 104,977.08 × 20,075
  4. Step 4: Simplify right side
    69,995.12x = 2,107,414,881
  5. Step 5: Solve for x
    x = 2,107,414,881/69,995.12
  6. Step 6: Final answer
    x = 30,108.03

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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.