Home / 69,709.01-104,569.81-19,789.61

Finding the Fourth Proportional to 69,709.01, 104,569.81 and 19,789.61

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Solution

The fourth proportional to 69,709.01, 104,569.81 and 19,789.61 is: 29,686.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,709.01 : 104,569.81 = 19,789.61 : x
  2. Step 2: Convert to fraction form
    69,709.01/104,569.81 = 19,789.61/x
  3. Step 3: Cross multiply
    69,709.01x = 104,569.81 × 19,789.61
  4. Step 4: Simplify right side
    69,709.01x = 2,069,395,185.35
  5. Step 5: Solve for x
    x = 2,069,395,185.35/69,709.01
  6. Step 6: Final answer
    x = 29,686.20

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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.