Finding the Fourth Proportional to 98,990.41, 136,546.29 and 58,677.19
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Solution
The fourth proportional to 98,990.41, 136,546.29 and 58,677.19 is: 80,938.67
Step by Step Solution
- Step 1: Write the proportion equation
98,990.41 : 136,546.29 = 58,677.19 : x - Step 2: Convert to fraction form
98,990.41/136,546.29 = 58,677.19/x - Step 3: Cross multiply
98,990.41x = 136,546.29 × 58,677.19 - Step 4: Simplify right side
98,990.41x = 8,012,152,602.13 - Step 5: Solve for x
x = 8,012,152,602.13/98,990.41 - Step 6: Final answer
x = 80,938.67
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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.