Finding the Fourth Proportional to 75,605.79, 104,318.19 and 63,552.09
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Solution
The fourth proportional to 75,605.79, 104,318.19 and 63,552.09 is: 87,686.92
Step by Step Solution
- Step 1: Write the proportion equation
75,605.79 : 104,318.19 = 63,552.09 : x - Step 2: Convert to fraction form
75,605.79/104,318.19 = 63,552.09/x - Step 3: Cross multiply
75,605.79x = 104,318.19 × 63,552.09 - Step 4: Simplify right side
75,605.79x = 6,629,638,999.52 - Step 5: Solve for x
x = 6,629,638,999.52/75,605.79 - Step 6: Final answer
x = 87,686.92
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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.