Finding the Fourth Proportional to 74,865.12, 112,297.60 and 22,274.48
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Solution
The fourth proportional to 74,865.12, 112,297.60 and 22,274.48 is: 33,411.70
Step by Step Solution
- Step 1: Write the proportion equation
74,865.12 : 112,297.60 = 22,274.48 : x - Step 2: Convert to fraction form
74,865.12/112,297.60 = 22,274.48/x - Step 3: Cross multiply
74,865.12x = 112,297.60 × 22,274.48 - Step 4: Simplify right side
74,865.12x = 2,501,370,645.25 - Step 5: Solve for x
x = 2,501,370,645.25/74,865.12 - Step 6: Final answer
x = 33,411.70
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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.