Finding the Fourth Proportional to 81,614.64, 122,378.88 and 25,444.28
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Solution
The fourth proportional to 81,614.64, 122,378.88 and 25,444.28 is: 38,152.99
Step by Step Solution
- Step 1: Write the proportion equation
81,614.64 : 122,378.88 = 25,444.28 : x - Step 2: Convert to fraction form
81,614.64/122,378.88 = 25,444.28/x - Step 3: Cross multiply
81,614.64x = 122,378.88 × 25,444.28 - Step 4: Simplify right side
81,614.64x = 3,113,842,488.81 - Step 5: Solve for x
x = 3,113,842,488.81/81,614.64 - Step 6: Final answer
x = 38,152.99
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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.