Finding the Fourth Proportional to 88,319.60, 132,532.68 and 38,399.12
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Solution
The fourth proportional to 88,319.60, 132,532.68 and 38,399.12 is: 57,621.84
Step by Step Solution
- Step 1: Write the proportion equation
88,319.60 : 132,532.68 = 38,399.12 : x - Step 2: Convert to fraction form
88,319.60/132,532.68 = 38,399.12/x - Step 3: Cross multiply
88,319.60x = 132,532.68 × 38,399.12 - Step 4: Simplify right side
88,319.60x = 5,089,138,283.24 - Step 5: Solve for x
x = 5,089,138,283.24/88,319.60 - Step 6: Final answer
x = 57,621.84
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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.