Home / 69,815.61-104,707.89-19,894.77

Finding the Fourth Proportional to 69,815.61, 104,707.89 and 19,894.77

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Solution

The fourth proportional to 69,815.61, 104,707.89 and 19,894.77 is: 29,837.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,815.61 : 104,707.89 = 19,894.77 : x
  2. Step 2: Convert to fraction form
    69,815.61/104,707.89 = 19,894.77/x
  3. Step 3: Cross multiply
    69,815.61x = 104,707.89 × 19,894.77
  4. Step 4: Simplify right side
    69,815.61x = 2,083,139,388.74
  5. Step 5: Solve for x
    x = 2,083,139,388.74/69,815.61
  6. Step 6: Final answer
    x = 29,837.73

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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.