Finding the Fourth Proportional to 109,689.79, 164,500.66 and 39,559.99
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Solution
The fourth proportional to 109,689.79, 164,500.66 and 39,559.99 is: 59,327.71
Step by Step Solution
- Step 1: Write the proportion equation
109,689.79 : 164,500.66 = 39,559.99 : x - Step 2: Convert to fraction form
109,689.79/164,500.66 = 39,559.99/x - Step 3: Cross multiply
109,689.79x = 164,500.66 × 39,559.99 - Step 4: Simplify right side
109,689.79x = 6,507,644,464.59 - Step 5: Solve for x
x = 6,507,644,464.59/109,689.79 - Step 6: Final answer
x = 59,327.71
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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.