Finding the Fourth Proportional to 75,702.68, 113,428.87 and 53,477.90
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Solution
The fourth proportional to 75,702.68, 113,428.87 and 53,477.90 is: 80,128.44
Step by Step Solution
- Step 1: Write the proportion equation
75,702.68 : 113,428.87 = 53,477.90 : x - Step 2: Convert to fraction form
75,702.68/113,428.87 = 53,477.90/x - Step 3: Cross multiply
75,702.68x = 113,428.87 × 53,477.90 - Step 4: Simplify right side
75,702.68x = 6,065,937,066.13 - Step 5: Solve for x
x = 6,065,937,066.13/75,702.68 - Step 6: Final answer
x = 80,128.44
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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.