Finding the Fourth Proportional to 75,158.18, 103,668.34 and 48,334.62
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Solution
The fourth proportional to 75,158.18, 103,668.34 and 48,334.62 is: 66,669.65
Step by Step Solution
- Step 1: Write the proportion equation
75,158.18 : 103,668.34 = 48,334.62 : x - Step 2: Convert to fraction form
75,158.18/103,668.34 = 48,334.62/x - Step 3: Cross multiply
75,158.18x = 103,668.34 × 48,334.62 - Step 4: Simplify right side
75,158.18x = 5,010,769,819.93 - Step 5: Solve for x
x = 5,010,769,819.93/75,158.18 - Step 6: Final answer
x = 66,669.65
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1.5x scale
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.