Finding the Fourth Proportional to 75,138.08, 112,609.44 and 30,714.08
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Solution
The fourth proportional to 75,138.08, 112,609.44 and 30,714.08 is: 46,031.19
Step by Step Solution
- Step 1: Write the proportion equation
75,138.08 : 112,609.44 = 30,714.08 : x - Step 2: Convert to fraction form
75,138.08/112,609.44 = 30,714.08/x - Step 3: Cross multiply
75,138.08x = 112,609.44 × 30,714.08 - Step 4: Simplify right side
75,138.08x = 3,458,695,348.92 - Step 5: Solve for x
x = 3,458,695,348.92/75,138.08 - Step 6: Final answer
x = 46,031.19
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.