Finding the Fourth Proportional to 75,455.68, 104,135.04 and 48,653.98
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Solution
The fourth proportional to 75,455.68, 104,135.04 and 48,653.98 is: 67,146.49
Step by Step Solution
- Step 1: Write the proportion equation
75,455.68 : 104,135.04 = 48,653.98 : x - Step 2: Convert to fraction form
75,455.68/104,135.04 = 48,653.98/x - Step 3: Cross multiply
75,455.68x = 104,135.04 × 48,653.98 - Step 4: Simplify right side
75,455.68x = 5,066,584,153.46 - Step 5: Solve for x
x = 5,066,584,153.46/75,455.68 - Step 6: Final answer
x = 67,146.49
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.