Home / 68,255.22-102,320.45-57,792.65

Finding the Fourth Proportional to 68,255.22, 102,320.45 and 57,792.65

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Solution

The fourth proportional to 68,255.22, 102,320.45 and 57,792.65 is: 86,636.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,255.22 : 102,320.45 = 57,792.65 : x
  2. Step 2: Convert to fraction form
    68,255.22/102,320.45 = 57,792.65/x
  3. Step 3: Cross multiply
    68,255.22x = 102,320.45 × 57,792.65
  4. Step 4: Simplify right side
    68,255.22x = 5,913,369,954.69
  5. Step 5: Solve for x
    x = 5,913,369,954.69/68,255.22
  6. Step 6: Final answer
    x = 86,636.16

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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.