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Finding the Fourth Proportional to 68,629.50, 102,750.06 and 43,607.52

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Solution

The fourth proportional to 68,629.50, 102,750.06 and 43,607.52 is: 65,287.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,629.50 : 102,750.06 = 43,607.52 : x
  2. Step 2: Convert to fraction form
    68,629.50/102,750.06 = 43,607.52/x
  3. Step 3: Cross multiply
    68,629.50x = 102,750.06 × 43,607.52
  4. Step 4: Simplify right side
    68,629.50x = 4,480,675,296.45
  5. Step 5: Solve for x
    x = 4,480,675,296.45/68,629.50
  6. Step 6: Final answer
    x = 65,287.89

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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.