Finding the Fourth Proportional to 74,425.23, 102,708.71 and 40,433.38
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Solution
The fourth proportional to 74,425.23, 102,708.71 and 40,433.38 is: 55,799.09
Step by Step Solution
- Step 1: Write the proportion equation
74,425.23 : 102,708.71 = 40,433.38 : x - Step 2: Convert to fraction form
74,425.23/102,708.71 = 40,433.38/x - Step 3: Cross multiply
74,425.23x = 102,708.71 × 40,433.38 - Step 4: Simplify right side
74,425.23x = 4,152,859,993.43 - Step 5: Solve for x
x = 4,152,859,993.43/74,425.23 - Step 6: Final answer
x = 55,799.09
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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.