Finding the Fourth Proportional to 97,692.64, 134,752.08 and 61,845.28
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Solution
The fourth proportional to 97,692.64, 134,752.08 and 61,845.28 is: 85,306.12
Step by Step Solution
- Step 1: Write the proportion equation
97,692.64 : 134,752.08 = 61,845.28 : x - Step 2: Convert to fraction form
97,692.64/134,752.08 = 61,845.28/x - Step 3: Cross multiply
97,692.64x = 134,752.08 × 61,845.28 - Step 4: Simplify right side
97,692.64x = 8,333,780,118.18 - Step 5: Solve for x
x = 8,333,780,118.18/97,692.64 - Step 6: Final answer
x = 85,306.12
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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.