Finding the Fourth Proportional to 74,287.08, 102,514.41 and 40,294.62
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Solution
The fourth proportional to 74,287.08, 102,514.41 and 40,294.62 is: 55,605.62
Step by Step Solution
- Step 1: Write the proportion equation
74,287.08 : 102,514.41 = 40,294.62 : x - Step 2: Convert to fraction form
74,287.08/102,514.41 = 40,294.62/x - Step 3: Cross multiply
74,287.08x = 102,514.41 × 40,294.62 - Step 4: Simplify right side
74,287.08x = 4,130,779,195.47 - Step 5: Solve for x
x = 4,130,779,195.47/74,287.08 - Step 6: Final answer
x = 55,605.62
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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.