Finding the Fourth Proportional to 74,458.18, 102,752.29 and 40,466.75
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Solution
The fourth proportional to 74,458.18, 102,752.29 and 40,466.75 is: 55,844.11
Step by Step Solution
- Step 1: Write the proportion equation
74,458.18 : 102,752.29 = 40,466.75 : x - Step 2: Convert to fraction form
74,458.18/102,752.29 = 40,466.75/x - Step 3: Cross multiply
74,458.18x = 102,752.29 × 40,466.75 - Step 4: Simplify right side
74,458.18x = 4,158,050,891.36 - Step 5: Solve for x
x = 4,158,050,891.36/74,458.18 - Step 6: Final answer
x = 55,844.11
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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.