Finding the Fourth Proportional to 71,027.25, 106,555.35 and 28,906.95
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Solution
The fourth proportional to 71,027.25, 106,555.35 and 28,906.95 is: 43,366.32
Step by Step Solution
- Step 1: Write the proportion equation
71,027.25 : 106,555.35 = 28,906.95 : x - Step 2: Convert to fraction form
71,027.25/106,555.35 = 28,906.95/x - Step 3: Cross multiply
71,027.25x = 106,555.35 × 28,906.95 - Step 4: Simplify right side
71,027.25x = 3,080,190,174.68 - Step 5: Solve for x
x = 3,080,190,174.68/71,027.25 - Step 6: Final answer
x = 43,366.32
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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.