Finding the Fourth Proportional to 84,704.51, 117,029.52 and 72,090.99
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Solution
The fourth proportional to 84,704.51, 117,029.52 and 72,090.99 is: 99,602.42
Step by Step Solution
- Step 1: Write the proportion equation
84,704.51 : 117,029.52 = 72,090.99 : x - Step 2: Convert to fraction form
84,704.51/117,029.52 = 72,090.99/x - Step 3: Cross multiply
84,704.51x = 117,029.52 × 72,090.99 - Step 4: Simplify right side
84,704.51x = 8,436,773,956.02 - Step 5: Solve for x
x = 8,436,773,956.02/84,704.51 - Step 6: Final answer
x = 99,602.42
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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.