Home / 69,789.02-104,684.15-19,869.08

Finding the Fourth Proportional to 69,789.02, 104,684.15 and 19,869.08

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Solution

The fourth proportional to 69,789.02, 104,684.15 and 19,869.08 is: 29,803.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,789.02 : 104,684.15 = 19,869.08 : x
  2. Step 2: Convert to fraction form
    69,789.02/104,684.15 = 19,869.08/x
  3. Step 3: Cross multiply
    69,789.02x = 104,684.15 × 19,869.08
  4. Step 4: Simplify right side
    69,789.02x = 2,079,977,277.33
  5. Step 5: Solve for x
    x = 2,079,977,277.33/69,789.02
  6. Step 6: Final answer
    x = 29,803.79

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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.