Finding the Fourth Proportional to 74,365.62, 102,623.84 and 40,373.36
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Solution
The fourth proportional to 74,365.62, 102,623.84 and 40,373.36 is: 55,714.85
Step by Step Solution
- Step 1: Write the proportion equation
74,365.62 : 102,623.84 = 40,373.36 : x - Step 2: Convert to fraction form
74,365.62/102,623.84 = 40,373.36/x - Step 3: Cross multiply
74,365.62x = 102,623.84 × 40,373.36 - Step 4: Simplify right side
74,365.62x = 4,143,269,236.90 - Step 5: Solve for x
x = 4,143,269,236.90/74,365.62 - Step 6: Final answer
x = 55,714.85
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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.