Finding the Fourth Proportional to 84,986.08, 117,290.43 and 48,690.99
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Solution
The fourth proportional to 84,986.08, 117,290.43 and 48,690.99 is: 67,199.09
Step by Step Solution
- Step 1: Write the proportion equation
84,986.08 : 117,290.43 = 48,690.99 : x - Step 2: Convert to fraction form
84,986.08/117,290.43 = 48,690.99/x - Step 3: Cross multiply
84,986.08x = 117,290.43 × 48,690.99 - Step 4: Simplify right side
84,986.08x = 5,710,987,154.23 - Step 5: Solve for x
x = 5,710,987,154.23/84,986.08 - Step 6: Final answer
x = 67,199.09
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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.