Finding the Fourth Proportional to 113,992.48, 170,991.64 and 54,006.91
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Solution
The fourth proportional to 113,992.48, 170,991.64 and 54,006.91 is: 81,011.75
Step by Step Solution
- Step 1: Write the proportion equation
113,992.48 : 170,991.64 = 54,006.91 : x - Step 2: Convert to fraction form
113,992.48/170,991.64 = 54,006.91/x - Step 3: Cross multiply
113,992.48x = 170,991.64 × 54,006.91 - Step 4: Simplify right side
113,992.48x = 9,234,730,112.23 - Step 5: Solve for x
x = 9,234,730,112.23/113,992.48 - Step 6: Final answer
x = 81,011.75
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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.