Finding the Fourth Proportional to 87,225.70, 120,374.36 and 48,991.97
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Solution
The fourth proportional to 87,225.70, 120,374.36 and 48,991.97 is: 67,610.54
Step by Step Solution
- Step 1: Write the proportion equation
87,225.70 : 120,374.36 = 48,991.97 : x - Step 2: Convert to fraction form
87,225.70/120,374.36 = 48,991.97/x - Step 3: Cross multiply
87,225.70x = 120,374.36 × 48,991.97 - Step 4: Simplify right side
87,225.70x = 5,897,377,033.89 - Step 5: Solve for x
x = 5,897,377,033.89/87,225.70 - Step 6: Final answer
x = 67,610.54
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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.