Finding the Fourth Proportional to 79,990.24, 119,683.84 and 47,850.24
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Solution
The fourth proportional to 79,990.24, 119,683.84 and 47,850.24 is: 71,594.99
Step by Step Solution
- Step 1: Write the proportion equation
79,990.24 : 119,683.84 = 47,850.24 : x - Step 2: Convert to fraction form
79,990.24/119,683.84 = 47,850.24/x - Step 3: Cross multiply
79,990.24x = 119,683.84 × 47,850.24 - Step 4: Simplify right side
79,990.24x = 5,726,900,468.12 - Step 5: Solve for x
x = 5,726,900,468.12/79,990.24 - Step 6: Final answer
x = 71,594.99
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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.