Finding the Fourth Proportional to 79,611.24, 109,862.68 and 43,801.26
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Solution
The fourth proportional to 79,611.24, 109,862.68 and 43,801.26 is: 60,445.28
Step by Step Solution
- Step 1: Write the proportion equation
79,611.24 : 109,862.68 = 43,801.26 : x - Step 2: Convert to fraction form
79,611.24/109,862.68 = 43,801.26/x - Step 3: Cross multiply
79,611.24x = 109,862.68 × 43,801.26 - Step 4: Simplify right side
79,611.24x = 4,812,123,810.98 - Step 5: Solve for x
x = 4,812,123,810.98/79,611.24 - Step 6: Final answer
x = 60,445.28
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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.