Finding the Fourth Proportional to 85,596.77, 128,307.67 and 29,420.03
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Solution
The fourth proportional to 85,596.77, 128,307.67 and 29,420.03 is: 44,099.98
Step by Step Solution
- Step 1: Write the proportion equation
85,596.77 : 128,307.67 = 29,420.03 : x - Step 2: Convert to fraction form
85,596.77/128,307.67 = 29,420.03/x - Step 3: Cross multiply
85,596.77x = 128,307.67 × 29,420.03 - Step 4: Simplify right side
85,596.77x = 3,774,815,500.63 - Step 5: Solve for x
x = 3,774,815,500.63/85,596.77 - Step 6: Final answer
x = 44,099.98
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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.