Finding the Fourth Proportional to 74,458.14, 102,753.02 and 40,466.63
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Solution
The fourth proportional to 74,458.14, 102,753.02 and 40,466.63 is: 55,844.37
Step by Step Solution
- Step 1: Write the proportion equation
74,458.14 : 102,753.02 = 40,466.63 : x - Step 2: Convert to fraction form
74,458.14/102,753.02 = 40,466.63/x - Step 3: Cross multiply
74,458.14x = 102,753.02 × 40,466.63 - Step 4: Simplify right side
74,458.14x = 4,158,067,953.25 - Step 5: Solve for x
x = 4,158,067,953.25/74,458.14 - Step 6: Final answer
x = 55,844.37
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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.