Finding the Fourth Proportional to 75,066.41, 112,599.65 and 18,906.99
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Solution
The fourth proportional to 75,066.41, 112,599.65 and 18,906.99 is: 28,360.49
Step by Step Solution
- Step 1: Write the proportion equation
75,066.41 : 112,599.65 = 18,906.99 : x - Step 2: Convert to fraction form
75,066.41/112,599.65 = 18,906.99/x - Step 3: Cross multiply
75,066.41x = 112,599.65 × 18,906.99 - Step 4: Simplify right side
75,066.41x = 2,128,920,186.34 - Step 5: Solve for x
x = 2,128,920,186.34/75,066.41 - Step 6: Final answer
x = 28,360.49
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Double scale
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.