Finding the Fourth Proportional to 75,276.91, 103,852.47 and 43,439.65
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Solution
The fourth proportional to 75,276.91, 103,852.47 and 43,439.65 is: 59,929.60
Step by Step Solution
- Step 1: Write the proportion equation
75,276.91 : 103,852.47 = 43,439.65 : x - Step 2: Convert to fraction form
75,276.91/103,852.47 = 43,439.65/x - Step 3: Cross multiply
75,276.91x = 103,852.47 × 43,439.65 - Step 4: Simplify right side
75,276.91x = 4,511,314,948.44 - Step 5: Solve for x
x = 4,511,314,948.44/75,276.91 - Step 6: Final answer
x = 59,929.60
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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.