Finding the Fourth Proportional to 72,545.54, 100,122.62 and 40,716.18
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Solution
The fourth proportional to 72,545.54, 100,122.62 and 40,716.18 is: 56,193.82
Step by Step Solution
- Step 1: Write the proportion equation
72,545.54 : 100,122.62 = 40,716.18 : x - Step 2: Convert to fraction form
72,545.54/100,122.62 = 40,716.18/x - Step 3: Cross multiply
72,545.54x = 100,122.62 × 40,716.18 - Step 4: Simplify right side
72,545.54x = 4,076,610,414.41 - Step 5: Solve for x
x = 4,076,610,414.41/72,545.54 - Step 6: Final answer
x = 56,193.82
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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.