Finding the Fourth Proportional to 75,498.21, 113,197.50 and 42,221.79
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Solution
The fourth proportional to 75,498.21, 113,197.50 and 42,221.79 is: 63,304.83
Step by Step Solution
- Step 1: Write the proportion equation
75,498.21 : 113,197.50 = 42,221.79 : x - Step 2: Convert to fraction form
75,498.21/113,197.50 = 42,221.79/x - Step 3: Cross multiply
75,498.21x = 113,197.50 × 42,221.79 - Step 4: Simplify right side
75,498.21x = 4,779,401,073.53 - Step 5: Solve for x
x = 4,779,401,073.53/75,498.21 - Step 6: Final answer
x = 63,304.83
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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.