Finding the Fourth Proportional to 74,392.08, 102,660.12 and 40,855.92
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Solution
The fourth proportional to 74,392.08, 102,660.12 and 40,855.92 is: 56,380.65
Step by Step Solution
- Step 1: Write the proportion equation
74,392.08 : 102,660.12 = 40,855.92 : x - Step 2: Convert to fraction form
74,392.08/102,660.12 = 40,855.92/x - Step 3: Cross multiply
74,392.08x = 102,660.12 × 40,855.92 - Step 4: Simplify right side
74,392.08x = 4,194,273,649.91 - Step 5: Solve for x
x = 4,194,273,649.91/74,392.08 - Step 6: Final answer
x = 56,380.65
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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.