Finding the Fourth Proportional to 75,178.18, 103,695.94 and 48,354.62
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Solution
The fourth proportional to 75,178.18, 103,695.94 and 48,354.62 is: 66,697.25
Step by Step Solution
- Step 1: Write the proportion equation
75,178.18 : 103,695.94 = 48,354.62 : x - Step 2: Convert to fraction form
75,178.18/103,695.94 = 48,354.62/x - Step 3: Cross multiply
75,178.18x = 103,695.94 × 48,354.62 - Step 4: Simplify right side
75,178.18x = 5,014,177,774.24 - Step 5: Solve for x
x = 5,014,177,774.24/75,178.18 - Step 6: Final answer
x = 66,697.25
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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.