Finding the Fourth Proportional to 75,303.96, 103,988.58 and 48,493.56
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Solution
The fourth proportional to 75,303.96, 103,988.58 and 48,493.56 is: 66,965.62
Step by Step Solution
- Step 1: Write the proportion equation
75,303.96 : 103,988.58 = 48,493.56 : x - Step 2: Convert to fraction form
75,303.96/103,988.58 = 48,493.56/x - Step 3: Cross multiply
75,303.96x = 103,988.58 × 48,493.56 - Step 4: Simplify right side
75,303.96x = 5,042,776,443.54 - Step 5: Solve for x
x = 5,042,776,443.54/75,303.96 - Step 6: Final answer
x = 66,965.62
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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.