Finding the Fourth Proportional to 80,179.99, 110,640.88 and 47,908.19
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Solution
The fourth proportional to 80,179.99, 110,640.88 and 47,908.19 is: 66,108.82
Step by Step Solution
- Step 1: Write the proportion equation
80,179.99 : 110,640.88 = 47,908.19 : x - Step 2: Convert to fraction form
80,179.99/110,640.88 = 47,908.19/x - Step 3: Cross multiply
80,179.99x = 110,640.88 × 47,908.19 - Step 4: Simplify right side
80,179.99x = 5,300,604,300.81 - Step 5: Solve for x
x = 5,300,604,300.81/80,179.99 - Step 6: Final answer
x = 66,108.82
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.