Finding the Fourth Proportional to 90,031.24, 124,241.07 and 49,745.08
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Solution
The fourth proportional to 90,031.24, 124,241.07 and 49,745.08 is: 68,647.08
Step by Step Solution
- Step 1: Write the proportion equation
90,031.24 : 124,241.07 = 49,745.08 : x - Step 2: Convert to fraction form
90,031.24/124,241.07 = 49,745.08/x - Step 3: Cross multiply
90,031.24x = 124,241.07 × 49,745.08 - Step 4: Simplify right side
90,031.24x = 6,180,381,966.44 - Step 5: Solve for x
x = 6,180,381,966.44/90,031.24 - Step 6: Final answer
x = 68,647.08
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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.