Finding the Fourth Proportional to 73,787.13, 110,680.79 and 31,639.99
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Solution
The fourth proportional to 73,787.13, 110,680.79 and 31,639.99 is: 47,460.03
Step by Step Solution
- Step 1: Write the proportion equation
73,787.13 : 110,680.79 = 31,639.99 : x - Step 2: Convert to fraction form
73,787.13/110,680.79 = 31,639.99/x - Step 3: Cross multiply
73,787.13x = 110,680.79 × 31,639.99 - Step 4: Simplify right side
73,787.13x = 3,501,939,088.79 - Step 5: Solve for x
x = 3,501,939,088.79/73,787.13 - Step 6: Final answer
x = 47,460.03
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.