Finding the Fourth Proportional to 74,532.82, 102,855.63 and 40,541.44
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Solution
The fourth proportional to 74,532.82, 102,855.63 and 40,541.44 is: 55,947.37
Step by Step Solution
- Step 1: Write the proportion equation
74,532.82 : 102,855.63 = 40,541.44 : x - Step 2: Convert to fraction form
74,532.82/102,855.63 = 40,541.44/x - Step 3: Cross multiply
74,532.82x = 102,855.63 × 40,541.44 - Step 4: Simplify right side
74,532.82x = 4,169,915,352.31 - Step 5: Solve for x
x = 4,169,915,352.31/74,532.82 - Step 6: Final answer
x = 55,947.37
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.