Finding the Fourth Proportional to 87,006.13, 120,062.71 and 51,189.19
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Solution
The fourth proportional to 87,006.13, 120,062.71 and 51,189.19 is: 70,637.70
Step by Step Solution
- Step 1: Write the proportion equation
87,006.13 : 120,062.71 = 51,189.19 : x - Step 2: Convert to fraction form
87,006.13/120,062.71 = 51,189.19/x - Step 3: Cross multiply
87,006.13x = 120,062.71 × 51,189.19 - Step 4: Simplify right side
87,006.13x = 6,145,912,874.10 - Step 5: Solve for x
x = 6,145,912,874.10/87,006.13 - Step 6: Final answer
x = 70,637.70
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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.