Finding the Fourth Proportional to 68,477.70, 102,716.55 and 40,829.70
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Solution
The fourth proportional to 68,477.70, 102,716.55 and 40,829.70 is: 61,244.55
Step by Step Solution
- Step 1: Write the proportion equation
68,477.70 : 102,716.55 = 40,829.70 : x - Step 2: Convert to fraction form
68,477.70/102,716.55 = 40,829.70/x - Step 3: Cross multiply
68,477.70x = 102,716.55 × 40,829.70 - Step 4: Simplify right side
68,477.70x = 4,193,885,921.54 - Step 5: Solve for x
x = 4,193,885,921.54/68,477.70 - Step 6: Final answer
x = 61,244.55
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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.