Finding the Fourth Proportional to 87,864.23, 121,252.46 and 47,578.11
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Solution
The fourth proportional to 87,864.23, 121,252.46 and 47,578.11 is: 65,657.69
Step by Step Solution
- Step 1: Write the proportion equation
87,864.23 : 121,252.46 = 47,578.11 : x - Step 2: Convert to fraction form
87,864.23/121,252.46 = 47,578.11/x - Step 3: Cross multiply
87,864.23x = 121,252.46 × 47,578.11 - Step 4: Simplify right side
87,864.23x = 5,768,962,187.06 - Step 5: Solve for x
x = 5,768,962,187.06/87,864.23 - Step 6: Final answer
x = 65,657.69
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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.