Finding the Fourth Proportional to 68,212.14, 102,317.49 and 26,658.78
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Solution
The fourth proportional to 68,212.14, 102,317.49 and 26,658.78 is: 39,987.89
Step by Step Solution
- Step 1: Write the proportion equation
68,212.14 : 102,317.49 = 26,658.78 : x - Step 2: Convert to fraction form
68,212.14/102,317.49 = 26,658.78/x - Step 3: Cross multiply
68,212.14x = 102,317.49 × 26,658.78 - Step 4: Simplify right side
68,212.14x = 2,727,659,456.06 - Step 5: Solve for x
x = 2,727,659,456.06/68,212.14 - Step 6: Final answer
x = 39,987.89
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1.5x scale
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.