Finding the Fourth Proportional to 75,120.16, 103,658.64 and 44,899.48
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Solution
The fourth proportional to 75,120.16, 103,658.64 and 44,899.48 is: 61,956.99
Step by Step Solution
- Step 1: Write the proportion equation
75,120.16 : 103,658.64 = 44,899.48 : x - Step 2: Convert to fraction form
75,120.16/103,658.64 = 44,899.48/x - Step 3: Cross multiply
75,120.16x = 103,658.64 × 44,899.48 - Step 4: Simplify right side
75,120.16x = 4,654,219,033.51 - Step 5: Solve for x
x = 4,654,219,033.51/75,120.16 - Step 6: Final answer
x = 61,956.99
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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.