Finding the Fourth Proportional to 81,571.95, 122,352.99 and 48,502.46
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Solution
The fourth proportional to 81,571.95, 122,352.99 and 48,502.46 is: 72,750.75
Step by Step Solution
- Step 1: Write the proportion equation
81,571.95 : 122,352.99 = 48,502.46 : x - Step 2: Convert to fraction form
81,571.95/122,352.99 = 48,502.46/x - Step 3: Cross multiply
81,571.95x = 122,352.99 × 48,502.46 - Step 4: Simplify right side
81,571.95x = 5,934,420,391.59 - Step 5: Solve for x
x = 5,934,420,391.59/81,571.95 - Step 6: Final answer
x = 72,750.75
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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.