Finding the Fourth Proportional to 75,963.24, 113,935.90 and 47,800.20
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Solution
The fourth proportional to 75,963.24, 113,935.90 and 47,800.20 is: 71,694.66
Step by Step Solution
- Step 1: Write the proportion equation
75,963.24 : 113,935.90 = 47,800.20 : x - Step 2: Convert to fraction form
75,963.24/113,935.90 = 47,800.20/x - Step 3: Cross multiply
75,963.24x = 113,935.90 × 47,800.20 - Step 4: Simplify right side
75,963.24x = 5,446,158,807.18 - Step 5: Solve for x
x = 5,446,158,807.18/75,963.24 - Step 6: Final answer
x = 71,694.66
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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.