Finding the Fourth Proportional to 67,829.20, 101,455.80 and 60,859.60
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Solution
The fourth proportional to 67,829.20, 101,455.80 and 60,859.60 is: 91,030.99
Step by Step Solution
- Step 1: Write the proportion equation
67,829.20 : 101,455.80 = 60,859.60 : x - Step 2: Convert to fraction form
67,829.20/101,455.80 = 60,859.60/x - Step 3: Cross multiply
67,829.20x = 101,455.80 × 60,859.60 - Step 4: Simplify right side
67,829.20x = 6,174,559,405.68 - Step 5: Solve for x
x = 6,174,559,405.68/67,829.20 - Step 6: Final answer
x = 91,030.99
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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.