Finding the Fourth Proportional to 86,450.11, 129,643.97 and 36,534.07
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Solution
The fourth proportional to 86,450.11, 129,643.97 and 36,534.07 is: 54,787.92
Step by Step Solution
- Step 1: Write the proportion equation
86,450.11 : 129,643.97 = 36,534.07 : x - Step 2: Convert to fraction form
86,450.11/129,643.97 = 36,534.07/x - Step 3: Cross multiply
86,450.11x = 129,643.97 × 36,534.07 - Step 4: Simplify right side
86,450.11x = 4,736,421,875.06 - Step 5: Solve for x
x = 4,736,421,875.06/86,450.11 - Step 6: Final answer
x = 54,787.92
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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.