Finding the Fourth Proportional to 87,903.05, 121,306.06 and 47,617.82
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Solution
The fourth proportional to 87,903.05, 121,306.06 and 47,617.82 is: 65,712.52
Step by Step Solution
- Step 1: Write the proportion equation
87,903.05 : 121,306.06 = 47,617.82 : x - Step 2: Convert to fraction form
87,903.05/121,306.06 = 47,617.82/x - Step 3: Cross multiply
87,903.05x = 121,306.06 × 47,617.82 - Step 4: Simplify right side
87,903.05x = 5,776,330,452.38 - Step 5: Solve for x
x = 5,776,330,452.38/87,903.05 - Step 6: Final answer
x = 65,712.52
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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.