Finding the Fourth Proportional to 74,754.88, 103,161.36 and 41,220.88
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Solution
The fourth proportional to 74,754.88, 103,161.36 and 41,220.88 is: 56,884.61
Step by Step Solution
- Step 1: Write the proportion equation
74,754.88 : 103,161.36 = 41,220.88 : x - Step 2: Convert to fraction form
74,754.88/103,161.36 = 41,220.88/x - Step 3: Cross multiply
74,754.88x = 103,161.36 × 41,220.88 - Step 4: Simplify right side
74,754.88x = 4,252,402,041.20 - Step 5: Solve for x
x = 4,252,402,041.20/74,754.88 - Step 6: Final answer
x = 56,884.61
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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.