Finding the Fourth Proportional to 81,575.74, 122,358.68 and 48,506.25
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Solution
The fourth proportional to 81,575.74, 122,358.68 and 48,506.25 is: 72,756.45
Step by Step Solution
- Step 1: Write the proportion equation
81,575.74 : 122,358.68 = 48,506.25 : x - Step 2: Convert to fraction form
81,575.74/122,358.68 = 48,506.25/x - Step 3: Cross multiply
81,575.74x = 122,358.68 × 48,506.25 - Step 4: Simplify right side
81,575.74x = 5,935,161,119.96 - Step 5: Solve for x
x = 5,935,161,119.96/81,575.74 - Step 6: Final answer
x = 72,756.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.