Finding the Fourth Proportional to 75,032.99, 112,549.49 and 30,659.70
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Solution
The fourth proportional to 75,032.99, 112,549.49 and 30,659.70 is: 45,989.55
Step by Step Solution
- Step 1: Write the proportion equation
75,032.99 : 112,549.49 = 30,659.70 : x - Step 2: Convert to fraction form
75,032.99/112,549.49 = 30,659.70/x - Step 3: Cross multiply
75,032.99x = 112,549.49 × 30,659.70 - Step 4: Simplify right side
75,032.99x = 3,450,733,598.55 - Step 5: Solve for x
x = 3,450,733,598.55/75,032.99 - Step 6: Final answer
x = 45,989.55
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1.5x scale
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.