Finding the Fourth Proportional to 87,787.21, 121,146.01 and 47,501.05
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Solution
The fourth proportional to 87,787.21, 121,146.01 and 47,501.05 is: 65,551.27
Step by Step Solution
- Step 1: Write the proportion equation
87,787.21 : 121,146.01 = 47,501.05 : x - Step 2: Convert to fraction form
87,787.21/121,146.01 = 47,501.05/x - Step 3: Cross multiply
87,787.21x = 121,146.01 × 47,501.05 - Step 4: Simplify right side
87,787.21x = 5,754,562,678.31 - Step 5: Solve for x
x = 5,754,562,678.31/87,787.21 - Step 6: Final answer
x = 65,551.27
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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.