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Finding the Fourth Proportional to 68,483, 102,583 and 40,316.26

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Solution

The fourth proportional to 68,483, 102,583 and 40,316.26 is: 60,391.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,483 : 102,583 = 40,316.26 : x
  2. Step 2: Convert to fraction form
    68,483/102,583 = 40,316.26/x
  3. Step 3: Cross multiply
    68,483x = 102,583 × 40,316.26
  4. Step 4: Simplify right side
    68,483x = 4,135,762,899.58
  5. Step 5: Solve for x
    x = 4,135,762,899.58/68,483
  6. Step 6: Final answer
    x = 60,391.09

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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.