Finding the Fourth Proportional to 74,859.93, 103,320.09 and 44,647.20
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Solution
The fourth proportional to 74,859.93, 103,320.09 and 44,647.20 is: 61,621.12
Step by Step Solution
- Step 1: Write the proportion equation
74,859.93 : 103,320.09 = 44,647.20 : x - Step 2: Convert to fraction form
74,859.93/103,320.09 = 44,647.20/x - Step 3: Cross multiply
74,859.93x = 103,320.09 × 44,647.20 - Step 4: Simplify right side
74,859.93x = 4,612,952,722.25 - Step 5: Solve for x
x = 4,612,952,722.25/74,859.93 - Step 6: Final answer
x = 61,621.12
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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.