Finding the Fourth Proportional to 98,456.77, 147,678.03 and 38,473.99
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Solution
The fourth proportional to 98,456.77, 147,678.03 and 38,473.99 is: 57,708.20
Step by Step Solution
- Step 1: Write the proportion equation
98,456.77 : 147,678.03 = 38,473.99 : x - Step 2: Convert to fraction form
98,456.77/147,678.03 = 38,473.99/x - Step 3: Cross multiply
98,456.77x = 147,678.03 × 38,473.99 - Step 4: Simplify right side
98,456.77x = 5,681,763,049.44 - Step 5: Solve for x
x = 5,681,763,049.44/98,456.77 - Step 6: Final answer
x = 57,708.20
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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.