Finding the Fourth Proportional to 77,135.16, 115,673.22 and 37,147.08
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Solution
The fourth proportional to 77,135.16, 115,673.22 and 37,147.08 is: 55,706.40
Step by Step Solution
- Step 1: Write the proportion equation
77,135.16 : 115,673.22 = 37,147.08 : x - Step 2: Convert to fraction form
77,135.16/115,673.22 = 37,147.08/x - Step 3: Cross multiply
77,135.16x = 115,673.22 × 37,147.08 - Step 4: Simplify right side
77,135.16x = 4,296,922,357.20 - Step 5: Solve for x
x = 4,296,922,357.20/77,135.16 - Step 6: Final answer
x = 55,706.40
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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.