Finding the Fourth Proportional to 87,970.54, 121,415.60 and 50,244.79
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Solution
The fourth proportional to 87,970.54, 121,415.60 and 50,244.79 is: 69,347.09
Step by Step Solution
- Step 1: Write the proportion equation
87,970.54 : 121,415.60 = 50,244.79 : x - Step 2: Convert to fraction form
87,970.54/121,415.60 = 50,244.79/x - Step 3: Cross multiply
87,970.54x = 121,415.60 × 50,244.79 - Step 4: Simplify right side
87,970.54x = 6,100,501,324.72 - Step 5: Solve for x
x = 6,100,501,324.72/87,970.54 - Step 6: Final answer
x = 69,347.09
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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.