Finding the Fourth Proportional to 78,842.62, 118,298.53 and 41,393.99
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Solution
The fourth proportional to 78,842.62, 118,298.53 and 41,393.99 is: 62,109.15
Step by Step Solution
- Step 1: Write the proportion equation
78,842.62 : 118,298.53 = 41,393.99 : x - Step 2: Convert to fraction form
78,842.62/118,298.53 = 41,393.99/x - Step 3: Cross multiply
78,842.62x = 118,298.53 × 41,393.99 - Step 4: Simplify right side
78,842.62x = 4,896,847,617.05 - Step 5: Solve for x
x = 4,896,847,617.05/78,842.62 - Step 6: Final answer
x = 62,109.15
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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.