Finding the Fourth Proportional to 83,684.08, 115,450.64 and 53,461.56
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Solution
The fourth proportional to 83,684.08, 115,450.64 and 53,461.56 is: 73,755.62
Step by Step Solution
- Step 1: Write the proportion equation
83,684.08 : 115,450.64 = 53,461.56 : x - Step 2: Convert to fraction form
83,684.08/115,450.64 = 53,461.56/x - Step 3: Cross multiply
83,684.08x = 115,450.64 × 53,461.56 - Step 4: Simplify right side
83,684.08x = 6,172,171,050.09 - Step 5: Solve for x
x = 6,172,171,050.09/83,684.08 - Step 6: Final answer
x = 73,755.62
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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.