Finding the Fourth Proportional to 74,925.09, 103,396.55 and 41,391.09
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Solution
The fourth proportional to 74,925.09, 103,396.55 and 41,391.09 is: 57,119.66
Step by Step Solution
- Step 1: Write the proportion equation
74,925.09 : 103,396.55 = 41,391.09 : x - Step 2: Convert to fraction form
74,925.09/103,396.55 = 41,391.09/x - Step 3: Cross multiply
74,925.09x = 103,396.55 × 41,391.09 - Step 4: Simplify right side
74,925.09x = 4,279,695,699.78 - Step 5: Solve for x
x = 4,279,695,699.78/74,925.09 - Step 6: Final answer
x = 57,119.66
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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.