Finding the Fourth Proportional to 74,356.18, 111,548.57 and 29,987.42
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Solution
The fourth proportional to 74,356.18, 111,548.57 and 29,987.42 is: 44,986.89
Step by Step Solution
- Step 1: Write the proportion equation
74,356.18 : 111,548.57 = 29,987.42 : x - Step 2: Convert to fraction form
74,356.18/111,548.57 = 29,987.42/x - Step 3: Cross multiply
74,356.18x = 111,548.57 × 29,987.42 - Step 4: Simplify right side
74,356.18x = 3,345,053,111.31 - Step 5: Solve for x
x = 3,345,053,111.31/74,356.18 - Step 6: Final answer
x = 44,986.89
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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.