Finding the Fourth Proportional to 87,795.24, 121,158.16 and 51,518.37
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Solution
The fourth proportional to 87,795.24, 121,158.16 and 51,518.37 is: 71,095.78
Step by Step Solution
- Step 1: Write the proportion equation
87,795.24 : 121,158.16 = 51,518.37 : x - Step 2: Convert to fraction form
87,795.24/121,158.16 = 51,518.37/x - Step 3: Cross multiply
87,795.24x = 121,158.16 × 51,518.37 - Step 4: Simplify right side
87,795.24x = 6,241,870,915.40 - Step 5: Solve for x
x = 6,241,870,915.40/87,795.24 - Step 6: Final answer
x = 71,095.78
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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.