Finding the Fourth Proportional to 75,768.10, 104,558.74 and 41,779.76
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Solution
The fourth proportional to 75,768.10, 104,558.74 and 41,779.76 is: 57,655.38
Step by Step Solution
- Step 1: Write the proportion equation
75,768.10 : 104,558.74 = 41,779.76 : x - Step 2: Convert to fraction form
75,768.10/104,558.74 = 41,779.76/x - Step 3: Cross multiply
75,768.10x = 104,558.74 × 41,779.76 - Step 4: Simplify right side
75,768.10x = 4,368,438,435.86 - Step 5: Solve for x
x = 4,368,438,435.86/75,768.10 - Step 6: Final answer
x = 57,655.38
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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.