Finding the Fourth Proportional to 99,786.79, 149,592.16 and 40,671.91
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Solution
The fourth proportional to 99,786.79, 149,592.16 and 40,671.91 is: 60,971.99
Step by Step Solution
- Step 1: Write the proportion equation
99,786.79 : 149,592.16 = 40,671.91 : x - Step 2: Convert to fraction form
99,786.79/149,592.16 = 40,671.91/x - Step 3: Cross multiply
99,786.79x = 149,592.16 × 40,671.91 - Step 4: Simplify right side
99,786.79x = 6,084,198,868.23 - Step 5: Solve for x
x = 6,084,198,868.23/99,786.79 - Step 6: Final answer
x = 60,971.99
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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.