Finding the Fourth Proportional to 75,346.77, 103,986.87 and 48,147.99
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Solution
The fourth proportional to 75,346.77, 103,986.87 and 48,147.99 is: 66,449.55
Step by Step Solution
- Step 1: Write the proportion equation
75,346.77 : 103,986.87 = 48,147.99 : x - Step 2: Convert to fraction form
75,346.77/103,986.87 = 48,147.99/x - Step 3: Cross multiply
75,346.77x = 103,986.87 × 48,147.99 - Step 4: Simplify right side
75,346.77x = 5,006,758,776.89 - Step 5: Solve for x
x = 5,006,758,776.89/75,346.77 - Step 6: Final answer
x = 66,449.55
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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.