Finding the Fourth Proportional to 87,526.42, 120,779.64 and 49,278.53
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Solution
The fourth proportional to 87,526.42, 120,779.64 and 49,278.53 is: 68,000.54
Step by Step Solution
- Step 1: Write the proportion equation
87,526.42 : 120,779.64 = 49,278.53 : x - Step 2: Convert to fraction form
87,526.42/120,779.64 = 49,278.53/x - Step 3: Cross multiply
87,526.42x = 120,779.64 × 49,278.53 - Step 4: Simplify right side
87,526.42x = 5,951,843,415.08 - Step 5: Solve for x
x = 5,951,843,415.08/87,526.42 - Step 6: Final answer
x = 68,000.54
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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.