Finding the Fourth Proportional to 74,619.24, 102,957.30 and 54,486.96
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Solution
The fourth proportional to 74,619.24, 102,957.30 and 54,486.96 is: 75,179.41
Step by Step Solution
- Step 1: Write the proportion equation
74,619.24 : 102,957.30 = 54,486.96 : x - Step 2: Convert to fraction form
74,619.24/102,957.30 = 54,486.96/x - Step 3: Cross multiply
74,619.24x = 102,957.30 × 54,486.96 - Step 4: Simplify right side
74,619.24x = 5,609,830,286.81 - Step 5: Solve for x
x = 5,609,830,286.81/74,619.24 - Step 6: Final answer
x = 75,179.41
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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.