Finding the Fourth Proportional to 90,021.08, 135,029.88 and 26,883.98
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Solution
The fourth proportional to 90,021.08, 135,029.88 and 26,883.98 is: 40,325.45
Step by Step Solution
- Step 1: Write the proportion equation
90,021.08 : 135,029.88 = 26,883.98 : x - Step 2: Convert to fraction form
90,021.08/135,029.88 = 26,883.98/x - Step 3: Cross multiply
90,021.08x = 135,029.88 × 26,883.98 - Step 4: Simplify right side
90,021.08x = 3,630,140,593.32 - Step 5: Solve for x
x = 3,630,140,593.32/90,021.08 - Step 6: Final answer
x = 40,325.45
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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.