Finding the Fourth Proportional to 91,029.49, 125,621.18 and 50,742.92
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Solution
The fourth proportional to 91,029.49, 125,621.18 and 50,742.92 is: 70,025.50
Step by Step Solution
- Step 1: Write the proportion equation
91,029.49 : 125,621.18 = 50,742.92 : x - Step 2: Convert to fraction form
91,029.49/125,621.18 = 50,742.92/x - Step 3: Cross multiply
91,029.49x = 125,621.18 × 50,742.92 - Step 4: Simplify right side
91,029.49x = 6,374,385,737.67 - Step 5: Solve for x
x = 6,374,385,737.67/91,029.49 - Step 6: Final answer
x = 70,025.50
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1.5x scale
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.