Finding the Fourth Proportional to 97,689.68, 146,532.92 and 31,128.92
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Solution
The fourth proportional to 97,689.68, 146,532.92 and 31,128.92 is: 46,692.87
Step by Step Solution
- Step 1: Write the proportion equation
97,689.68 : 146,532.92 = 31,128.92 : x - Step 2: Convert to fraction form
97,689.68/146,532.92 = 31,128.92/x - Step 3: Cross multiply
97,689.68x = 146,532.92 × 31,128.92 - Step 4: Simplify right side
97,689.68x = 4,561,411,544.05 - Step 5: Solve for x
x = 4,561,411,544.05/97,689.68 - Step 6: Final answer
x = 46,692.87
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.