Finding the Fourth Proportional to 87,786.51, 121,145.00 and 47,500.99
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Solution
The fourth proportional to 87,786.51, 121,145.00 and 47,500.99 is: 65,551.15
Step by Step Solution
- Step 1: Write the proportion equation
87,786.51 : 121,145.00 = 47,500.99 : x - Step 2: Convert to fraction form
87,786.51/121,145.00 = 47,500.99/x - Step 3: Cross multiply
87,786.51x = 121,145.00 × 47,500.99 - Step 4: Simplify right side
87,786.51x = 5,754,506,893.18 - Step 5: Solve for x
x = 5,754,506,893.18/87,786.51 - Step 6: Final answer
x = 65,551.15
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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.