Finding the Fourth Proportional to 75,353.98, 103,990.35 and 41,365.84
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Solution
The fourth proportional to 75,353.98, 103,990.35 and 41,365.84 is: 57,085.88
Step by Step Solution
- Step 1: Write the proportion equation
75,353.98 : 103,990.35 = 41,365.84 : x - Step 2: Convert to fraction form
75,353.98/103,990.35 = 41,365.84/x - Step 3: Cross multiply
75,353.98x = 103,990.35 × 41,365.84 - Step 4: Simplify right side
75,353.98x = 4,301,648,179.64 - Step 5: Solve for x
x = 4,301,648,179.64/75,353.98 - Step 6: Final answer
x = 57,085.88
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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.