Finding the Fourth Proportional to 71,929.12, 107,617.20 and 43,844.08
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Solution
The fourth proportional to 71,929.12, 107,617.20 and 43,844.08 is: 65,597.59
Step by Step Solution
- Step 1: Write the proportion equation
71,929.12 : 107,617.20 = 43,844.08 : x - Step 2: Convert to fraction form
71,929.12/107,617.20 = 43,844.08/x - Step 3: Cross multiply
71,929.12x = 107,617.20 × 43,844.08 - Step 4: Simplify right side
71,929.12x = 4,718,377,126.18 - Step 5: Solve for x
x = 4,718,377,126.18/71,929.12 - Step 6: Final answer
x = 65,597.59
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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.