Finding the Fourth Proportional to 75,860.84, 113,699.10 and 53,680.70
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Solution
The fourth proportional to 75,860.84, 113,699.10 and 53,680.70 is: 80,455.84
Step by Step Solution
- Step 1: Write the proportion equation
75,860.84 : 113,699.10 = 53,680.70 : x - Step 2: Convert to fraction form
75,860.84/113,699.10 = 53,680.70/x - Step 3: Cross multiply
75,860.84x = 113,699.10 × 53,680.70 - Step 4: Simplify right side
75,860.84x = 6,103,447,277.37 - Step 5: Solve for x
x = 6,103,447,277.37/75,860.84 - Step 6: Final answer
x = 80,455.84
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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.