Finding the Fourth Proportional to 75,031.40, 112,530.90 and 32,911.40
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Solution
The fourth proportional to 75,031.40, 112,530.90 and 32,911.40 is: 49,359.99
Step by Step Solution
- Step 1: Write the proportion equation
75,031.40 : 112,530.90 = 32,911.40 : x - Step 2: Convert to fraction form
75,031.40/112,530.90 = 32,911.40/x - Step 3: Cross multiply
75,031.40x = 112,530.90 × 32,911.40 - Step 4: Simplify right side
75,031.40x = 3,703,549,462.26 - Step 5: Solve for x
x = 3,703,549,462.26/75,031.40 - Step 6: Final answer
x = 49,359.99
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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.