Finding the Fourth Proportional to 99,382.22, 137,146.79 and 56,370.08
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Solution
The fourth proportional to 99,382.22, 137,146.79 and 56,370.08 is: 77,790.33
Step by Step Solution
- Step 1: Write the proportion equation
99,382.22 : 137,146.79 = 56,370.08 : x - Step 2: Convert to fraction form
99,382.22/137,146.79 = 56,370.08/x - Step 3: Cross multiply
99,382.22x = 137,146.79 × 56,370.08 - Step 4: Simplify right side
99,382.22x = 7,730,976,113.53 - Step 5: Solve for x
x = 7,730,976,113.53/99,382.22 - Step 6: Final answer
x = 77,790.33
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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.