Finding the Fourth Proportional to 87,712.33, 121,043.01 and 47,426.08
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Solution
The fourth proportional to 87,712.33, 121,043.01 and 47,426.08 is: 65,447.99
Step by Step Solution
- Step 1: Write the proportion equation
87,712.33 : 121,043.01 = 47,426.08 : x - Step 2: Convert to fraction form
87,712.33/121,043.01 = 47,426.08/x - Step 3: Cross multiply
87,712.33x = 121,043.01 × 47,426.08 - Step 4: Simplify right side
87,712.33x = 5,740,595,475.70 - Step 5: Solve for x
x = 5,740,595,475.70/87,712.33 - Step 6: Final answer
x = 65,447.99
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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.