Finding the Fourth Proportional to 74,565.42, 102,965.91 and 50,748.99
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Solution
The fourth proportional to 74,565.42, 102,965.91 and 50,748.99 is: 70,078.27
Step by Step Solution
- Step 1: Write the proportion equation
74,565.42 : 102,965.91 = 50,748.99 : x - Step 2: Convert to fraction form
74,565.42/102,965.91 = 50,748.99/x - Step 3: Cross multiply
74,565.42x = 102,965.91 × 50,748.99 - Step 4: Simplify right side
74,565.42x = 5,225,415,936.93 - Step 5: Solve for x
x = 5,225,415,936.93/74,565.42 - Step 6: Final answer
x = 70,078.27
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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.