Home / 69,639.61-104,446.06-19,707.65

Finding the Fourth Proportional to 69,639.61, 104,446.06 and 19,707.65

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Solution

The fourth proportional to 69,639.61, 104,446.06 and 19,707.65 is: 29,557.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,639.61 : 104,446.06 = 19,707.65 : x
  2. Step 2: Convert to fraction form
    69,639.61/104,446.06 = 19,707.65/x
  3. Step 3: Cross multiply
    69,639.61x = 104,446.06 × 19,707.65
  4. Step 4: Simplify right side
    69,639.61x = 2,058,386,295.82
  5. Step 5: Solve for x
    x = 2,058,386,295.82/69,639.61
  6. Step 6: Final answer
    x = 29,557.69

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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.