Finding the Fourth Proportional to 79,808.13, 110,140.18 and 43,998.08
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Solution
The fourth proportional to 79,808.13, 110,140.18 and 43,998.08 is: 60,720.08
Step by Step Solution
- Step 1: Write the proportion equation
79,808.13 : 110,140.18 = 43,998.08 : x - Step 2: Convert to fraction form
79,808.13/110,140.18 = 43,998.08/x - Step 3: Cross multiply
79,808.13x = 110,140.18 × 43,998.08 - Step 4: Simplify right side
79,808.13x = 4,845,955,790.16 - Step 5: Solve for x
x = 4,845,955,790.16/79,808.13 - Step 6: Final answer
x = 60,720.08
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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.