Home / 69,789.89-104,685.46-19,869.95

Finding the Fourth Proportional to 69,789.89, 104,685.46 and 19,869.95

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Solution

The fourth proportional to 69,789.89, 104,685.46 and 19,869.95 is: 29,805.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,789.89 : 104,685.46 = 19,869.95 : x
  2. Step 2: Convert to fraction form
    69,789.89/104,685.46 = 19,869.95/x
  3. Step 3: Cross multiply
    69,789.89x = 104,685.46 × 19,869.95
  4. Step 4: Simplify right side
    69,789.89x = 2,080,094,855.93
  5. Step 5: Solve for x
    x = 2,080,094,855.93/69,789.89
  6. Step 6: Final answer
    x = 29,805.10

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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.