Finding the Fourth Proportional to 75,714.44, 113,499.36 and 28,316.68
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Solution
The fourth proportional to 75,714.44, 113,499.36 and 28,316.68 is: 42,447.98
Step by Step Solution
- Step 1: Write the proportion equation
75,714.44 : 113,499.36 = 28,316.68 : x - Step 2: Convert to fraction form
75,714.44/113,499.36 = 28,316.68/x - Step 3: Cross multiply
75,714.44x = 113,499.36 × 28,316.68 - Step 4: Simplify right side
75,714.44x = 3,213,924,773.58 - Step 5: Solve for x
x = 3,213,924,773.58/75,714.44 - Step 6: Final answer
x = 42,447.98
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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.