Finding the Fourth Proportional to 74,442.75, 102,731.00 and 40,908.75
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Solution
The fourth proportional to 74,442.75, 102,731.00 and 40,908.75 is: 56,454.08
Step by Step Solution
- Step 1: Write the proportion equation
74,442.75 : 102,731.00 = 40,908.75 : x - Step 2: Convert to fraction form
74,442.75/102,731.00 = 40,908.75/x - Step 3: Cross multiply
74,442.75x = 102,731.00 × 40,908.75 - Step 4: Simplify right side
74,442.75x = 4,202,596,591.71 - Step 5: Solve for x
x = 4,202,596,591.71/74,442.75 - Step 6: Final answer
x = 56,454.08
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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.