Finding the Fourth Proportional to 87,887.40, 121,292.08 and 49,653.96
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Solution
The fourth proportional to 87,887.40, 121,292.08 and 49,653.96 is: 68,526.68
Step by Step Solution
- Step 1: Write the proportion equation
87,887.40 : 121,292.08 = 49,653.96 : x - Step 2: Convert to fraction form
87,887.40/121,292.08 = 49,653.96/x - Step 3: Cross multiply
87,887.40x = 121,292.08 × 49,653.96 - Step 4: Simplify right side
87,887.40x = 6,022,632,088.64 - Step 5: Solve for x
x = 6,022,632,088.64/87,887.40 - Step 6: Final answer
x = 68,526.68
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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.