Finding the Fourth Proportional to 74,843.26, 103,281.13 and 44,612.99
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Solution
The fourth proportional to 74,843.26, 103,281.13 and 44,612.99 is: 61,564.40
Step by Step Solution
- Step 1: Write the proportion equation
74,843.26 : 103,281.13 = 44,612.99 : x - Step 2: Convert to fraction form
74,843.26/103,281.13 = 44,612.99/x - Step 3: Cross multiply
74,843.26x = 103,281.13 × 44,612.99 - Step 4: Simplify right side
74,843.26x = 4,607,680,276.55 - Step 5: Solve for x
x = 4,607,680,276.55/74,843.26 - Step 6: Final answer
x = 61,564.40
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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.