Finding the Fourth Proportional to 77,076.82, 115,545.17 and 29,661.68
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Solution
The fourth proportional to 77,076.82, 115,545.17 and 29,661.68 is: 44,465.55
Step by Step Solution
- Step 1: Write the proportion equation
77,076.82 : 115,545.17 = 29,661.68 : x - Step 2: Convert to fraction form
77,076.82/115,545.17 = 29,661.68/x - Step 3: Cross multiply
77,076.82x = 115,545.17 × 29,661.68 - Step 4: Simplify right side
77,076.82x = 3,427,263,620.96 - Step 5: Solve for x
x = 3,427,263,620.96/77,076.82 - Step 6: Final answer
x = 44,465.55
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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.