Finding the Fourth Proportional to 71,252.98, 106,879.37 and 28,577.66
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Solution
The fourth proportional to 71,252.98, 106,879.37 and 28,577.66 is: 42,866.45
Step by Step Solution
- Step 1: Write the proportion equation
71,252.98 : 106,879.37 = 28,577.66 : x - Step 2: Convert to fraction form
71,252.98/106,879.37 = 28,577.66/x - Step 3: Cross multiply
71,252.98x = 106,879.37 × 28,577.66 - Step 4: Simplify right side
71,252.98x = 3,054,362,296.87 - Step 5: Solve for x
x = 3,054,362,296.87/71,252.98 - Step 6: Final answer
x = 42,866.45
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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.