Finding the Fourth Proportional to 98,217.93, 135,542.66 and 55,776.63
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Solution
The fourth proportional to 98,217.93, 135,542.66 and 55,776.63 is: 76,972.83
Step by Step Solution
- Step 1: Write the proportion equation
98,217.93 : 135,542.66 = 55,776.63 : x - Step 2: Convert to fraction form
98,217.93/135,542.66 = 55,776.63/x - Step 3: Cross multiply
98,217.93x = 135,542.66 × 55,776.63 - Step 4: Simplify right side
98,217.93x = 7,560,112,517.15 - Step 5: Solve for x
x = 7,560,112,517.15/98,217.93 - Step 6: Final answer
x = 76,972.83
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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.