Finding the Fourth Proportional to 98,542.54, 135,977.70 and 55,523.98
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Solution
The fourth proportional to 98,542.54, 135,977.70 and 55,523.98 is: 76,616.89
Step by Step Solution
- Step 1: Write the proportion equation
98,542.54 : 135,977.70 = 55,523.98 : x - Step 2: Convert to fraction form
98,542.54/135,977.70 = 55,523.98/x - Step 3: Cross multiply
98,542.54x = 135,977.70 × 55,523.98 - Step 4: Simplify right side
98,542.54x = 7,550,023,095.25 - Step 5: Solve for x
x = 7,550,023,095.25/98,542.54 - Step 6: Final answer
x = 76,616.89
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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.