Finding the Fourth Proportional to 75,444.36, 104,112.80 and 40,988.80
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Solution
The fourth proportional to 75,444.36, 104,112.80 and 40,988.80 is: 56,564.32
Step by Step Solution
- Step 1: Write the proportion equation
75,444.36 : 104,112.80 = 40,988.80 : x - Step 2: Convert to fraction form
75,444.36/104,112.80 = 40,988.80/x - Step 3: Cross multiply
75,444.36x = 104,112.80 × 40,988.80 - Step 4: Simplify right side
75,444.36x = 4,267,458,736.64 - Step 5: Solve for x
x = 4,267,458,736.64/75,444.36 - Step 6: Final answer
x = 56,564.32
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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.