Finding the Fourth Proportional to 87,952.74, 121,371.81 and 52,121.49
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Solution
The fourth proportional to 87,952.74, 121,371.81 and 52,121.49 is: 71,925.90
Step by Step Solution
- Step 1: Write the proportion equation
87,952.74 : 121,371.81 = 52,121.49 : x - Step 2: Convert to fraction form
87,952.74/121,371.81 = 52,121.49/x - Step 3: Cross multiply
87,952.74x = 121,371.81 × 52,121.49 - Step 4: Simplify right side
87,952.74x = 6,326,079,581.20 - Step 5: Solve for x
x = 6,326,079,581.20/87,952.74 - Step 6: Final answer
x = 71,925.90
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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.