Finding the Fourth Proportional to 76,935.63, 115,402.25 and 39,474.08
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Solution
The fourth proportional to 76,935.63, 115,402.25 and 39,474.08 is: 59,210.51
Step by Step Solution
- Step 1: Write the proportion equation
76,935.63 : 115,402.25 = 39,474.08 : x - Step 2: Convert to fraction form
76,935.63/115,402.25 = 39,474.08/x - Step 3: Cross multiply
76,935.63x = 115,402.25 × 39,474.08 - Step 4: Simplify right side
76,935.63x = 4,555,397,739.82 - Step 5: Solve for x
x = 4,555,397,739.82/76,935.63 - Step 6: Final answer
x = 59,210.51
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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.