Finding the Fourth Proportional to 89,036.75, 122,866.04 and 48,742.79
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Solution
The fourth proportional to 89,036.75, 122,866.04 and 48,742.79 is: 67,262.49
Step by Step Solution
- Step 1: Write the proportion equation
89,036.75 : 122,866.04 = 48,742.79 : x - Step 2: Convert to fraction form
89,036.75/122,866.04 = 48,742.79/x - Step 3: Cross multiply
89,036.75x = 122,866.04 × 48,742.79 - Step 4: Simplify right side
89,036.75x = 5,988,832,727.81 - Step 5: Solve for x
x = 5,988,832,727.81/89,036.75 - Step 6: Final answer
x = 67,262.49
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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.