Finding the Fourth Proportional to 89,040.76, 122,876.25 and 48,756.99
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Solution
The fourth proportional to 89,040.76, 122,876.25 and 48,756.99 is: 67,284.65
Step by Step Solution
- Step 1: Write the proportion equation
89,040.76 : 122,876.25 = 48,756.99 : x - Step 2: Convert to fraction form
89,040.76/122,876.25 = 48,756.99/x - Step 3: Cross multiply
89,040.76x = 122,876.25 × 48,756.99 - Step 4: Simplify right side
89,040.76x = 5,991,076,092.49 - Step 5: Solve for x
x = 5,991,076,092.49/89,040.76 - Step 6: Final answer
x = 67,284.65
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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.