Finding the Fourth Proportional to 87,875.99, 121,269.02 and 47,589.63
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Solution
The fourth proportional to 87,875.99, 121,269.02 and 47,589.63 is: 65,673.77
Step by Step Solution
- Step 1: Write the proportion equation
87,875.99 : 121,269.02 = 47,589.63 : x - Step 2: Convert to fraction form
87,875.99/121,269.02 = 47,589.63/x - Step 3: Cross multiply
87,875.99x = 121,269.02 × 47,589.63 - Step 4: Simplify right side
87,875.99x = 5,771,147,099.56 - Step 5: Solve for x
x = 5,771,147,099.56/87,875.99 - Step 6: Final answer
x = 65,673.77
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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.