Finding the Fourth Proportional to 87,787.73, 121,146.68 and 47,502.20
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Solution
The fourth proportional to 87,787.73, 121,146.68 and 47,502.20 is: 65,552.83
Step by Step Solution
- Step 1: Write the proportion equation
87,787.73 : 121,146.68 = 47,502.20 : x - Step 2: Convert to fraction form
87,787.73/121,146.68 = 47,502.20/x - Step 3: Cross multiply
87,787.73x = 121,146.68 × 47,502.20 - Step 4: Simplify right side
87,787.73x = 5,754,733,888.05 - Step 5: Solve for x
x = 5,754,733,888.05/87,787.73 - Step 6: Final answer
x = 65,552.83
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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.