Finding the Fourth Proportional to 99,878.27, 149,790.06 and 29,755.76
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Solution
The fourth proportional to 99,878.27, 149,790.06 and 29,755.76 is: 44,625.49
Step by Step Solution
- Step 1: Write the proportion equation
99,878.27 : 149,790.06 = 29,755.76 : x - Step 2: Convert to fraction form
99,878.27/149,790.06 = 29,755.76/x - Step 3: Cross multiply
99,878.27x = 149,790.06 × 29,755.76 - Step 4: Simplify right side
99,878.27x = 4,457,116,326.80 - Step 5: Solve for x
x = 4,457,116,326.80/99,878.27 - Step 6: Final answer
x = 44,625.49
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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.