Finding the Fourth Proportional to 74,819.19, 103,251.00 and 40,827.75
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Solution
The fourth proportional to 74,819.19, 103,251.00 and 40,827.75 is: 56,342.57
Step by Step Solution
- Step 1: Write the proportion equation
74,819.19 : 103,251.00 = 40,827.75 : x - Step 2: Convert to fraction form
74,819.19/103,251.00 = 40,827.75/x - Step 3: Cross multiply
74,819.19x = 103,251.00 × 40,827.75 - Step 4: Simplify right side
74,819.19x = 4,215,505,781.16 - Step 5: Solve for x
x = 4,215,505,781.16/74,819.19 - Step 6: Final answer
x = 56,342.57
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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.