Home / 81,664.75-122,497.13-26,260.75

Finding the Fourth Proportional to 81,664.75, 122,497.13 and 26,260.75

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Solution

The fourth proportional to 81,664.75, 122,497.13 and 26,260.75 is: 39,391.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,664.75 : 122,497.13 = 26,260.75 : x
  2. Step 2: Convert to fraction form
    81,664.75/122,497.13 = 26,260.75/x
  3. Step 3: Cross multiply
    81,664.75x = 122,497.13 × 26,260.75
  4. Step 4: Simplify right side
    81,664.75x = 3,216,866,506.65
  5. Step 5: Solve for x
    x = 3,216,866,506.65/81,664.75
  6. Step 6: Final answer
    x = 39,391.13

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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.