Home / 69,962.28-104,912.45-20,031

Finding the Fourth Proportional to 69,962.28, 104,912.45 and 20,031

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Solution

The fourth proportional to 69,962.28, 104,912.45 and 20,031 is: 30,037.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,962.28 : 104,912.45 = 20,031 : x
  2. Step 2: Convert to fraction form
    69,962.28/104,912.45 = 20,031/x
  3. Step 3: Cross multiply
    69,962.28x = 104,912.45 × 20,031
  4. Step 4: Simplify right side
    69,962.28x = 2,101,501,285.95
  5. Step 5: Solve for x
    x = 2,101,501,285.95/69,962.28
  6. Step 6: Final answer
    x = 30,037.63

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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.