Finding the Fourth Proportional to 75,681.14, 113,554.51 and 40,579.79
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Solution
The fourth proportional to 75,681.14, 113,554.51 and 40,579.79 is: 60,887.27
Step by Step Solution
- Step 1: Write the proportion equation
75,681.14 : 113,554.51 = 40,579.79 : x - Step 2: Convert to fraction form
75,681.14/113,554.51 = 40,579.79/x - Step 3: Cross multiply
75,681.14x = 113,554.51 × 40,579.79 - Step 4: Simplify right side
75,681.14x = 4,608,017,500.13 - Step 5: Solve for x
x = 4,608,017,500.13/75,681.14 - Step 6: Final answer
x = 60,887.27
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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.