Finding the Fourth Proportional to 74,222.16, 102,470.04 and 48,769.08
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Solution
The fourth proportional to 74,222.16, 102,470.04 and 48,769.08 is: 67,329.89
Step by Step Solution
- Step 1: Write the proportion equation
74,222.16 : 102,470.04 = 48,769.08 : x - Step 2: Convert to fraction form
74,222.16/102,470.04 = 48,769.08/x - Step 3: Cross multiply
74,222.16x = 102,470.04 × 48,769.08 - Step 4: Simplify right side
74,222.16x = 4,997,369,578.36 - Step 5: Solve for x
x = 4,997,369,578.36/74,222.16 - Step 6: Final answer
x = 67,329.89
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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.