Finding the Fourth Proportional to 115,328.34, 172,991.97 and 36,442.44
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Solution
The fourth proportional to 115,328.34, 172,991.97 and 36,442.44 is: 54,663.49
Step by Step Solution
- Step 1: Write the proportion equation
115,328.34 : 172,991.97 = 36,442.44 : x - Step 2: Convert to fraction form
115,328.34/172,991.97 = 36,442.44/x - Step 3: Cross multiply
115,328.34x = 172,991.97 × 36,442.44 - Step 4: Simplify right side
115,328.34x = 6,304,249,487.21 - Step 5: Solve for x
x = 6,304,249,487.21/115,328.34 - Step 6: Final answer
x = 54,663.49
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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.