Finding the Fourth Proportional to 77,046.10, 115,605.80 and 53,390.05
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Solution
The fourth proportional to 77,046.10, 115,605.80 and 53,390.05 is: 80,110.47
Step by Step Solution
- Step 1: Write the proportion equation
77,046.10 : 115,605.80 = 53,390.05 : x - Step 2: Convert to fraction form
77,046.10/115,605.80 = 53,390.05/x - Step 3: Cross multiply
77,046.10x = 115,605.80 × 53,390.05 - Step 4: Simplify right side
77,046.10x = 6,172,198,597.31 - Step 5: Solve for x
x = 6,172,198,597.31/77,046.10 - Step 6: Final answer
x = 80,110.47
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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.