Finding the Fourth Proportional to 68,381.68, 102,572.06 and 36,806.62
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Solution
The fourth proportional to 68,381.68, 102,572.06 and 36,806.62 is: 55,209.68
Step by Step Solution
- Step 1: Write the proportion equation
68,381.68 : 102,572.06 = 36,806.62 : x - Step 2: Convert to fraction form
68,381.68/102,572.06 = 36,806.62/x - Step 3: Cross multiply
68,381.68x = 102,572.06 × 36,806.62 - Step 4: Simplify right side
68,381.68x = 3,775,330,835.04 - Step 5: Solve for x
x = 3,775,330,835.04/68,381.68 - Step 6: Final answer
x = 55,209.68
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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.