Finding the Fourth Proportional to 75,680.08, 103,682.22 and 72,842.44
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Solution
The fourth proportional to 75,680.08, 103,682.22 and 72,842.44 is: 99,794.63
Step by Step Solution
- Step 1: Write the proportion equation
75,680.08 : 103,682.22 = 72,842.44 : x - Step 2: Convert to fraction form
75,680.08/103,682.22 = 72,842.44/x - Step 3: Cross multiply
75,680.08x = 103,682.22 × 72,842.44 - Step 4: Simplify right side
75,680.08x = 7,552,465,707.31 - Step 5: Solve for x
x = 7,552,465,707.31/75,680.08 - Step 6: Final answer
x = 99,794.63
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.