Finding the Fourth Proportional to 68,365.12, 102,400.05 and 66,692.07
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Solution
The fourth proportional to 68,365.12, 102,400.05 and 66,692.07 is: 99,894.09
Step by Step Solution
- Step 1: Write the proportion equation
68,365.12 : 102,400.05 = 66,692.07 : x - Step 2: Convert to fraction form
68,365.12/102,400.05 = 66,692.07/x - Step 3: Cross multiply
68,365.12x = 102,400.05 × 66,692.07 - Step 4: Simplify right side
68,365.12x = 6,829,271,302.60 - Step 5: Solve for x
x = 6,829,271,302.60/68,365.12 - Step 6: Final answer
x = 99,894.09
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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.