Finding the Fourth Proportional to 82,865.49, 124,201.80 and 47,351.70
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Solution
The fourth proportional to 82,865.49, 124,201.80 and 47,351.70 is: 70,972.44
Step by Step Solution
- Step 1: Write the proportion equation
82,865.49 : 124,201.80 = 47,351.70 : x - Step 2: Convert to fraction form
82,865.49/124,201.80 = 47,351.70/x - Step 3: Cross multiply
82,865.49x = 124,201.80 × 47,351.70 - Step 4: Simplify right side
82,865.49x = 5,881,166,373.06 - Step 5: Solve for x
x = 5,881,166,373.06/82,865.49 - Step 6: Final answer
x = 70,972.44
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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.