Home / 69,965.12-104,916.80-20,033.88

Finding the Fourth Proportional to 69,965.12, 104,916.80 and 20,033.88

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Solution

The fourth proportional to 69,965.12, 104,916.80 and 20,033.88 is: 30,041.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,965.12 : 104,916.80 = 20,033.88 : x
  2. Step 2: Convert to fraction form
    69,965.12/104,916.80 = 20,033.88/x
  3. Step 3: Cross multiply
    69,965.12x = 104,916.80 × 20,033.88
  4. Step 4: Simplify right side
    69,965.12x = 2,101,890,481.01
  5. Step 5: Solve for x
    x = 2,101,890,481.01/69,965.12
  6. Step 6: Final answer
    x = 30,041.98

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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.