Finding the Fourth Proportional to 81,903.24, 122,692.32 and 63,118.08
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Solution
The fourth proportional to 81,903.24, 122,692.32 and 63,118.08 is: 94,551.86
Step by Step Solution
- Step 1: Write the proportion equation
81,903.24 : 122,692.32 = 63,118.08 : x - Step 2: Convert to fraction form
81,903.24/122,692.32 = 63,118.08/x - Step 3: Cross multiply
81,903.24x = 122,692.32 × 63,118.08 - Step 4: Simplify right side
81,903.24x = 7,744,103,669.15 - Step 5: Solve for x
x = 7,744,103,669.15/81,903.24 - Step 6: Final answer
x = 94,551.86
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.