Finding the Fourth Proportional to 77,235.32, 106,575.72 and 43,245.68
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Solution
The fourth proportional to 77,235.32, 106,575.72 and 43,245.68 is: 59,673.99
Step by Step Solution
- Step 1: Write the proportion equation
77,235.32 : 106,575.72 = 43,245.68 : x - Step 2: Convert to fraction form
77,235.32/106,575.72 = 43,245.68/x - Step 3: Cross multiply
77,235.32x = 106,575.72 × 43,245.68 - Step 4: Simplify right side
77,235.32x = 4,608,939,482.89 - Step 5: Solve for x
x = 4,608,939,482.89/77,235.32 - Step 6: Final answer
x = 59,673.99
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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.