Finding the Fourth Proportional to 74,524.88, 102,846.28 and 40,991.76
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Solution
The fourth proportional to 74,524.88, 102,846.28 and 40,991.76 is: 56,569.70
Step by Step Solution
- Step 1: Write the proportion equation
74,524.88 : 102,846.28 = 40,991.76 : x - Step 2: Convert to fraction form
74,524.88/102,846.28 = 40,991.76/x - Step 3: Cross multiply
74,524.88x = 102,846.28 × 40,991.76 - Step 4: Simplify right side
74,524.88x = 4,215,850,026.65 - Step 5: Solve for x
x = 4,215,850,026.65/74,524.88 - Step 6: Final answer
x = 56,569.70
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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.