Finding the Fourth Proportional to 75,089.60, 103,623.84 and 41,556.80
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Solution
The fourth proportional to 75,089.60, 103,623.84 and 41,556.80 is: 57,348.49
Step by Step Solution
- Step 1: Write the proportion equation
75,089.60 : 103,623.84 = 41,556.80 : x - Step 2: Convert to fraction form
75,089.60/103,623.84 = 41,556.80/x - Step 3: Cross multiply
75,089.60x = 103,623.84 × 41,556.80 - Step 4: Simplify right side
75,089.60x = 4,306,275,194.11 - Step 5: Solve for x
x = 4,306,275,194.11/75,089.60 - Step 6: Final answer
x = 57,348.49
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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.