Finding the Fourth Proportional to 79,611.48, 109,863.84 and 43,803.81
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Solution
The fourth proportional to 79,611.48, 109,863.84 and 43,803.81 is: 60,449.26
Step by Step Solution
- Step 1: Write the proportion equation
79,611.48 : 109,863.84 = 43,803.81 : x - Step 2: Convert to fraction form
79,611.48/109,863.84 = 43,803.81/x - Step 3: Cross multiply
79,611.48x = 109,863.84 × 43,803.81 - Step 4: Simplify right side
79,611.48x = 4,812,454,773.23 - Step 5: Solve for x
x = 4,812,454,773.23/79,611.48 - Step 6: Final answer
x = 60,449.26
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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.