Finding the Fourth Proportional to 75,534.21, 113,251.64 and 42,257.79
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Solution
The fourth proportional to 75,534.21, 113,251.64 and 42,257.79 is: 63,358.89
Step by Step Solution
- Step 1: Write the proportion equation
75,534.21 : 113,251.64 = 42,257.79 : x - Step 2: Convert to fraction form
75,534.21/113,251.64 = 42,257.79/x - Step 3: Cross multiply
75,534.21x = 113,251.64 × 42,257.79 - Step 4: Simplify right side
75,534.21x = 4,785,763,808.99 - Step 5: Solve for x
x = 4,785,763,808.99/75,534.21 - Step 6: Final answer
x = 63,358.89
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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.