Finding the Fourth Proportional to 77,297.12, 115,968.80 and 44,442.08
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Solution
The fourth proportional to 77,297.12, 115,968.80 and 44,442.08 is: 66,676.41
Step by Step Solution
- Step 1: Write the proportion equation
77,297.12 : 115,968.80 = 44,442.08 : x - Step 2: Convert to fraction form
77,297.12/115,968.80 = 44,442.08/x - Step 3: Cross multiply
77,297.12x = 115,968.80 × 44,442.08 - Step 4: Simplify right side
77,297.12x = 5,153,894,687.10 - Step 5: Solve for x
x = 5,153,894,687.10/77,297.12 - Step 6: Final answer
x = 66,676.41
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.