Finding the Fourth Proportional to 74,464.46, 102,761.79 and 40,473.26
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Solution
The fourth proportional to 74,464.46, 102,761.79 and 40,473.26 is: 55,853.55
Step by Step Solution
- Step 1: Write the proportion equation
74,464.46 : 102,761.79 = 40,473.26 : x - Step 2: Convert to fraction form
74,464.46/102,761.79 = 40,473.26/x - Step 3: Cross multiply
74,464.46x = 102,761.79 × 40,473.26 - Step 4: Simplify right side
74,464.46x = 4,159,104,644.74 - Step 5: Solve for x
x = 4,159,104,644.74/74,464.46 - Step 6: Final answer
x = 55,853.55
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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.