Finding the Fourth Proportional to 115,042.70, 172,461.45 and 44,905.70
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Solution
The fourth proportional to 115,042.70, 172,461.45 and 44,905.70 is: 67,318.50
Step by Step Solution
- Step 1: Write the proportion equation
115,042.70 : 172,461.45 = 44,905.70 : x - Step 2: Convert to fraction form
115,042.70/172,461.45 = 44,905.70/x - Step 3: Cross multiply
115,042.70x = 172,461.45 × 44,905.70 - Step 4: Simplify right side
115,042.70x = 7,744,502,135.27 - Step 5: Solve for x
x = 7,744,502,135.27/115,042.70 - Step 6: Final answer
x = 67,318.50
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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.