Finding the Fourth Proportional to 68,315.07, 102,475.68 and 20,926.70
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Solution
The fourth proportional to 68,315.07, 102,475.68 and 20,926.70 is: 31,391.00
Step by Step Solution
- Step 1: Write the proportion equation
68,315.07 : 102,475.68 = 20,926.70 : x - Step 2: Convert to fraction form
68,315.07/102,475.68 = 20,926.70/x - Step 3: Cross multiply
68,315.07x = 102,475.68 × 20,926.70 - Step 4: Simplify right side
68,315.07x = 2,144,478,300.22 - Step 5: Solve for x
x = 2,144,478,300.22/68,315.07 - Step 6: Final answer
x = 31,391.00
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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.