Finding the Fourth Proportional to 68,829.93, 102,778.70 and 54,630.63
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Solution
The fourth proportional to 68,829.93, 102,778.70 and 54,630.63 is: 81,575.92
Step by Step Solution
- Step 1: Write the proportion equation
68,829.93 : 102,778.70 = 54,630.63 : x - Step 2: Convert to fraction form
68,829.93/102,778.70 = 54,630.63/x - Step 3: Cross multiply
68,829.93x = 102,778.70 × 54,630.63 - Step 4: Simplify right side
68,829.93x = 5,614,864,858.43 - Step 5: Solve for x
x = 5,614,864,858.43/68,829.93 - Step 6: Final answer
x = 81,575.92
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.