Finding the Fourth Proportional to 79,884.96, 119,739.96 and 40,387.74
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Solution
The fourth proportional to 79,884.96, 119,739.96 and 40,387.74 is: 60,537.38
Step by Step Solution
- Step 1: Write the proportion equation
79,884.96 : 119,739.96 = 40,387.74 : x - Step 2: Convert to fraction form
79,884.96/119,739.96 = 40,387.74/x - Step 3: Cross multiply
79,884.96x = 119,739.96 × 40,387.74 - Step 4: Simplify right side
79,884.96x = 4,836,026,372.09 - Step 5: Solve for x
x = 4,836,026,372.09/79,884.96 - Step 6: Final answer
x = 60,537.38
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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.