Finding the Fourth Proportional to 98,294.75, 135,649.64 and 55,855.07
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Solution
The fourth proportional to 98,294.75, 135,649.64 and 55,855.07 is: 77,081.64
Step by Step Solution
- Step 1: Write the proportion equation
98,294.75 : 135,649.64 = 55,855.07 : x - Step 2: Convert to fraction form
98,294.75/135,649.64 = 55,855.07/x - Step 3: Cross multiply
98,294.75x = 135,649.64 × 55,855.07 - Step 4: Simplify right side
98,294.75x = 7,576,720,137.67 - Step 5: Solve for x
x = 7,576,720,137.67/98,294.75 - Step 6: Final answer
x = 77,081.64
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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.