Finding the Fourth Proportional to 79,720.67, 119,539.45 and 29,759.67
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Solution
The fourth proportional to 79,720.67, 119,539.45 and 29,759.67 is: 44,623.99
Step by Step Solution
- Step 1: Write the proportion equation
79,720.67 : 119,539.45 = 29,759.67 : x - Step 2: Convert to fraction form
79,720.67/119,539.45 = 29,759.67/x - Step 3: Cross multiply
79,720.67x = 119,539.45 × 29,759.67 - Step 4: Simplify right side
79,720.67x = 3,557,454,583.98 - Step 5: Solve for x
x = 3,557,454,583.98/79,720.67 - Step 6: Final answer
x = 44,623.99
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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.