Finding the Fourth Proportional to 76,630.20, 115,021.14 and 62,754.84
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Solution
The fourth proportional to 76,630.20, 115,021.14 and 62,754.84 is: 94,194.37
Step by Step Solution
- Step 1: Write the proportion equation
76,630.20 : 115,021.14 = 62,754.84 : x - Step 2: Convert to fraction form
76,630.20/115,021.14 = 62,754.84/x - Step 3: Cross multiply
76,630.20x = 115,021.14 × 62,754.84 - Step 4: Simplify right side
76,630.20x = 7,218,133,237.32 - Step 5: Solve for x
x = 7,218,133,237.32/76,630.20 - Step 6: Final answer
x = 94,194.37
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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.