Home / 68,153.09-102,321.82-47,040.64

Finding the Fourth Proportional to 68,153.09, 102,321.82 and 47,040.64

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Solution

The fourth proportional to 68,153.09, 102,321.82 and 47,040.64 is: 70,624.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,153.09 : 102,321.82 = 47,040.64 : x
  2. Step 2: Convert to fraction form
    68,153.09/102,321.82 = 47,040.64/x
  3. Step 3: Cross multiply
    68,153.09x = 102,321.82 × 47,040.64
  4. Step 4: Simplify right side
    68,153.09x = 4,813,283,151.95
  5. Step 5: Solve for x
    x = 4,813,283,151.95/68,153.09
  6. Step 6: Final answer
    x = 70,624.58

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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.