Finding the Fourth Proportional to 102,621.08, 141,615.72 and 57,299.83
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Solution
The fourth proportional to 102,621.08, 141,615.72 and 57,299.83 is: 79,072.99
Step by Step Solution
- Step 1: Write the proportion equation
102,621.08 : 141,615.72 = 57,299.83 : x - Step 2: Convert to fraction form
102,621.08/141,615.72 = 57,299.83/x - Step 3: Cross multiply
102,621.08x = 141,615.72 × 57,299.83 - Step 4: Simplify right side
102,621.08x = 8,114,556,327.29 - Step 5: Solve for x
x = 8,114,556,327.29/102,621.08 - Step 6: Final answer
x = 79,072.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.