Finding the Fourth Proportional to 72,525.30, 108,787.77 and 40,920.99
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Solution
The fourth proportional to 72,525.30, 108,787.77 and 40,920.99 is: 61,381.38
Step by Step Solution
- Step 1: Write the proportion equation
72,525.30 : 108,787.77 = 40,920.99 : x - Step 2: Convert to fraction form
72,525.30/108,787.77 = 40,920.99/x - Step 3: Cross multiply
72,525.30x = 108,787.77 × 40,920.99 - Step 4: Simplify right side
72,525.30x = 4,451,703,248.29 - Step 5: Solve for x
x = 4,451,703,248.29/72,525.30 - Step 6: Final answer
x = 61,381.38
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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.