Finding the Fourth Proportional to 98,378.01, 135,761.67 and 55,939.14
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Solution
The fourth proportional to 98,378.01, 135,761.67 and 55,939.14 is: 77,196.02
Step by Step Solution
- Step 1: Write the proportion equation
98,378.01 : 135,761.67 = 55,939.14 : x - Step 2: Convert to fraction form
98,378.01/135,761.67 = 55,939.14/x - Step 3: Cross multiply
98,378.01x = 135,761.67 × 55,939.14 - Step 4: Simplify right side
98,378.01x = 7,594,391,064.76 - Step 5: Solve for x
x = 7,594,391,064.76/98,378.01 - Step 6: Final answer
x = 77,196.02
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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.