Finding the Fourth Proportional to 75,076.48, 103,486.44 and 59,135.68
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Solution
The fourth proportional to 75,076.48, 103,486.44 and 59,135.68 is: 81,513.42
Step by Step Solution
- Step 1: Write the proportion equation
75,076.48 : 103,486.44 = 59,135.68 : x - Step 2: Convert to fraction form
75,076.48/103,486.44 = 59,135.68/x - Step 3: Cross multiply
75,076.48x = 103,486.44 × 59,135.68 - Step 4: Simplify right side
75,076.48x = 6,119,741,000.18 - Step 5: Solve for x
x = 6,119,741,000.18/75,076.48 - Step 6: Final answer
x = 81,513.42
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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.