Finding the Fourth Proportional to 90,454.75, 135,663.08 and 58,337.62
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Solution
The fourth proportional to 90,454.75, 135,663.08 and 58,337.62 is: 87,494.14
Step by Step Solution
- Step 1: Write the proportion equation
90,454.75 : 135,663.08 = 58,337.62 : x - Step 2: Convert to fraction form
90,454.75/135,663.08 = 58,337.62/x - Step 3: Cross multiply
90,454.75x = 135,663.08 × 58,337.62 - Step 4: Simplify right side
90,454.75x = 7,914,260,742.30 - Step 5: Solve for x
x = 7,914,260,742.30/90,454.75 - Step 6: Final answer
x = 87,494.14
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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.