Finding the Fourth Proportional to 89,083.81, 122,931.28 and 48,797.75
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Solution
The fourth proportional to 89,083.81, 122,931.28 and 48,797.75 is: 67,338.49
Step by Step Solution
- Step 1: Write the proportion equation
89,083.81 : 122,931.28 = 48,797.75 : x - Step 2: Convert to fraction form
89,083.81/122,931.28 = 48,797.75/x - Step 3: Cross multiply
89,083.81x = 122,931.28 × 48,797.75 - Step 4: Simplify right side
89,083.81x = 5,998,769,253.96 - Step 5: Solve for x
x = 5,998,769,253.96/89,083.81 - Step 6: Final answer
x = 67,338.49
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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.