Finding the Fourth Proportional to 97,456.64, 134,491.15 and 57,171.08
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Solution
The fourth proportional to 97,456.64, 134,491.15 and 57,171.08 is: 78,896.68
Step by Step Solution
- Step 1: Write the proportion equation
97,456.64 : 134,491.15 = 57,171.08 : x - Step 2: Convert to fraction form
97,456.64/134,491.15 = 57,171.08/x - Step 3: Cross multiply
97,456.64x = 134,491.15 × 57,171.08 - Step 4: Simplify right side
97,456.64x = 7,689,004,703.63 - Step 5: Solve for x
x = 7,689,004,703.63/97,456.64 - Step 6: Final answer
x = 78,896.68
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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.