Finding the Fourth Proportional to 97,654.36, 134,761.84 and 57,371.80
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Solution
The fourth proportional to 97,654.36, 134,761.84 and 57,371.80 is: 79,172.39
Step by Step Solution
- Step 1: Write the proportion equation
97,654.36 : 134,761.84 = 57,371.80 : x - Step 2: Convert to fraction form
97,654.36/134,761.84 = 57,371.80/x - Step 3: Cross multiply
97,654.36x = 134,761.84 × 57,371.80 - Step 4: Simplify right side
97,654.36x = 7,731,529,332.11 - Step 5: Solve for x
x = 7,731,529,332.11/97,654.36 - Step 6: Final answer
x = 79,172.39
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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.