Finding the Fourth Proportional to 75,859.84, 113,697.60 and 53,679.70
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Solution
The fourth proportional to 75,859.84, 113,697.60 and 53,679.70 is: 80,454.34
Step by Step Solution
- Step 1: Write the proportion equation
75,859.84 : 113,697.60 = 53,679.70 : x - Step 2: Convert to fraction form
75,859.84/113,697.60 = 53,679.70/x - Step 3: Cross multiply
75,859.84x = 113,697.60 × 53,679.70 - Step 4: Simplify right side
75,859.84x = 6,103,253,058.72 - Step 5: Solve for x
x = 6,103,253,058.72/75,859.84 - Step 6: Final answer
x = 80,454.34
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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.