Finding the Fourth Proportional to 78,016.14, 107,676.84 and 44,482.14
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Solution
The fourth proportional to 78,016.14, 107,676.84 and 44,482.14 is: 61,393.66
Step by Step Solution
- Step 1: Write the proportion equation
78,016.14 : 107,676.84 = 44,482.14 : x - Step 2: Convert to fraction form
78,016.14/107,676.84 = 44,482.14/x - Step 3: Cross multiply
78,016.14x = 107,676.84 × 44,482.14 - Step 4: Simplify right side
78,016.14x = 4,789,696,271.64 - Step 5: Solve for x
x = 4,789,696,271.64/78,016.14 - Step 6: Final answer
x = 61,393.66
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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.