Finding the Fourth Proportional to 97,836.28, 135,006.42 and 57,551.56
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Solution
The fourth proportional to 97,836.28, 135,006.42 and 57,551.56 is: 79,416.65
Step by Step Solution
- Step 1: Write the proportion equation
97,836.28 : 135,006.42 = 57,551.56 : x - Step 2: Convert to fraction form
97,836.28/135,006.42 = 57,551.56/x - Step 3: Cross multiply
97,836.28x = 135,006.42 × 57,551.56 - Step 4: Simplify right side
97,836.28x = 7,769,830,081.02 - Step 5: Solve for x
x = 7,769,830,081.02/97,836.28 - Step 6: Final answer
x = 79,416.65
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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.