Finding the Fourth Proportional to 73,115.48, 109,674.12 and 25,731.99
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Solution
The fourth proportional to 73,115.48, 109,674.12 and 25,731.99 is: 38,598.30
Step by Step Solution
- Step 1: Write the proportion equation
73,115.48 : 109,674.12 = 25,731.99 : x - Step 2: Convert to fraction form
73,115.48/109,674.12 = 25,731.99/x - Step 3: Cross multiply
73,115.48x = 109,674.12 × 25,731.99 - Step 4: Simplify right side
73,115.48x = 2,822,133,359.10 - Step 5: Solve for x
x = 2,822,133,359.10/73,115.48 - Step 6: Final answer
x = 38,598.30
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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.