Finding the Fourth Proportional to 76,805.28, 115,208.64 and 48,754.08
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Solution
The fourth proportional to 76,805.28, 115,208.64 and 48,754.08 is: 73,131.58
Step by Step Solution
- Step 1: Write the proportion equation
76,805.28 : 115,208.64 = 48,754.08 : x - Step 2: Convert to fraction form
76,805.28/115,208.64 = 48,754.08/x - Step 3: Cross multiply
76,805.28x = 115,208.64 × 48,754.08 - Step 4: Simplify right side
76,805.28x = 5,616,891,251.25 - Step 5: Solve for x
x = 5,616,891,251.25/76,805.28 - Step 6: Final answer
x = 73,131.58
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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.