Finding the Fourth Proportional to 84,708.05, 126,979.45 and 40,322.88
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Solution
The fourth proportional to 84,708.05, 126,979.45 and 40,322.88 is: 60,444.99
Step by Step Solution
- Step 1: Write the proportion equation
84,708.05 : 126,979.45 = 40,322.88 : x - Step 2: Convert to fraction form
84,708.05/126,979.45 = 40,322.88/x - Step 3: Cross multiply
84,708.05x = 126,979.45 × 40,322.88 - Step 4: Simplify right side
84,708.05x = 5,120,177,024.01 - Step 5: Solve for x
x = 5,120,177,024.01/84,708.05 - Step 6: Final answer
x = 60,444.99
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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.