Home / 69,986.07-104,957.57-20,052.78

Finding the Fourth Proportional to 69,986.07, 104,957.57 and 20,052.78

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Solution

The fourth proportional to 69,986.07, 104,957.57 and 20,052.78 is: 30,073.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,986.07 : 104,957.57 = 20,052.78 : x
  2. Step 2: Convert to fraction form
    69,986.07/104,957.57 = 20,052.78/x
  3. Step 3: Cross multiply
    69,986.07x = 104,957.57 × 20,052.78
  4. Step 4: Simplify right side
    69,986.07x = 2,104,691,222.67
  5. Step 5: Solve for x
    x = 2,104,691,222.67/69,986.07
  6. Step 6: Final answer
    x = 30,073.00

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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.