Finding the Fourth Proportional to 74,425.44, 102,706.68 and 40,433.65
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Solution
The fourth proportional to 74,425.44, 102,706.68 and 40,433.65 is: 55,798.20
Step by Step Solution
- Step 1: Write the proportion equation
74,425.44 : 102,706.68 = 40,433.65 : x - Step 2: Convert to fraction form
74,425.44/102,706.68 = 40,433.65/x - Step 3: Cross multiply
74,425.44x = 102,706.68 × 40,433.65 - Step 4: Simplify right side
74,425.44x = 4,152,805,951.78 - Step 5: Solve for x
x = 4,152,805,951.78/74,425.44 - Step 6: Final answer
x = 55,798.20
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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.