Finding the Fourth Proportional to 75,588.68, 113,283.66 and 31,190.74
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Solution
The fourth proportional to 75,588.68, 113,283.66 and 31,190.74 is: 46,745.11
Step by Step Solution
- Step 1: Write the proportion equation
75,588.68 : 113,283.66 = 31,190.74 : x - Step 2: Convert to fraction form
75,588.68/113,283.66 = 31,190.74/x - Step 3: Cross multiply
75,588.68x = 113,283.66 × 31,190.74 - Step 4: Simplify right side
75,588.68x = 3,533,401,185.31 - Step 5: Solve for x
x = 3,533,401,185.31/75,588.68 - Step 6: Final answer
x = 46,745.11
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.