Finding the Fourth Proportional to 74,573.62, 102,911.80 and 41,039.62
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Solution
The fourth proportional to 74,573.62, 102,911.80 and 41,039.62 is: 56,634.79
Step by Step Solution
- Step 1: Write the proportion equation
74,573.62 : 102,911.80 = 41,039.62 : x - Step 2: Convert to fraction form
74,573.62/102,911.80 = 41,039.62/x - Step 3: Cross multiply
74,573.62x = 102,911.80 × 41,039.62 - Step 4: Simplify right side
74,573.62x = 4,223,461,165.52 - Step 5: Solve for x
x = 4,223,461,165.52/74,573.62 - Step 6: Final answer
x = 56,634.79
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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.