Finding the Fourth Proportional to 91,031.04, 125,616.42 and 50,742.99
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Solution
The fourth proportional to 91,031.04, 125,616.42 and 50,742.99 is: 70,021.75
Step by Step Solution
- Step 1: Write the proportion equation
91,031.04 : 125,616.42 = 50,742.99 : x - Step 2: Convert to fraction form
91,031.04/125,616.42 = 50,742.99/x - Step 3: Cross multiply
91,031.04x = 125,616.42 × 50,742.99 - Step 4: Simplify right side
91,031.04x = 6,374,152,743.90 - Step 5: Solve for x
x = 6,374,152,743.90/91,031.04 - Step 6: Final answer
x = 70,021.75
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1.5x scale
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.