Finding the Fourth Proportional to 75,353.19, 103,987.41 and 41,819.19
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Solution
The fourth proportional to 75,353.19, 103,987.41 and 41,819.19 is: 57,710.48
Step by Step Solution
- Step 1: Write the proportion equation
75,353.19 : 103,987.41 = 41,819.19 : x - Step 2: Convert to fraction form
75,353.19/103,987.41 = 41,819.19/x - Step 3: Cross multiply
75,353.19x = 103,987.41 × 41,819.19 - Step 4: Simplify right side
75,353.19x = 4,348,669,047.30 - Step 5: Solve for x
x = 4,348,669,047.30/75,353.19 - Step 6: Final answer
x = 57,710.48
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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.