Finding the Fourth Proportional to 91,046.64, 136,562.66 and 31,069.99
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Solution
The fourth proportional to 91,046.64, 136,562.66 and 31,069.99 is: 46,602.49
Step by Step Solution
- Step 1: Write the proportion equation
91,046.64 : 136,562.66 = 31,069.99 : x - Step 2: Convert to fraction form
91,046.64/136,562.66 = 31,069.99/x - Step 3: Cross multiply
91,046.64x = 136,562.66 × 31,069.99 - Step 4: Simplify right side
91,046.64x = 4,242,999,797.76 - Step 5: Solve for x
x = 4,242,999,797.76/91,046.64 - Step 6: Final answer
x = 46,602.49
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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.