Finding the Fourth Proportional to 79,808.84, 110,135.76 and 43,998.72
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Solution
The fourth proportional to 79,808.84, 110,135.76 and 43,998.72 is: 60,717.99
Step by Step Solution
- Step 1: Write the proportion equation
79,808.84 : 110,135.76 = 43,998.72 : x - Step 2: Convert to fraction form
79,808.84/110,135.76 = 43,998.72/x - Step 3: Cross multiply
79,808.84x = 110,135.76 × 43,998.72 - Step 4: Simplify right side
79,808.84x = 4,845,832,466.23 - Step 5: Solve for x
x = 4,845,832,466.23/79,808.84 - Step 6: Final answer
x = 60,717.99
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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.