Finding the Fourth Proportional to 86,433.75, 129,701.66 and 36,510.62
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Solution
The fourth proportional to 86,433.75, 129,701.66 and 36,510.62 is: 54,787.48
Step by Step Solution
- Step 1: Write the proportion equation
86,433.75 : 129,701.66 = 36,510.62 : x - Step 2: Convert to fraction form
86,433.75/129,701.66 = 36,510.62/x - Step 3: Cross multiply
86,433.75x = 129,701.66 × 36,510.62 - Step 4: Simplify right side
86,433.75x = 4,735,487,190.57 - Step 5: Solve for x
x = 4,735,487,190.57/86,433.75 - Step 6: Final answer
x = 54,787.48
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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.