Finding the Fourth Proportional to 90,676.08, 125,125.05 and 50,387.31
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Solution
The fourth proportional to 90,676.08, 125,125.05 and 50,387.31 is: 69,530.08
Step by Step Solution
- Step 1: Write the proportion equation
90,676.08 : 125,125.05 = 50,387.31 : x - Step 2: Convert to fraction form
90,676.08/125,125.05 = 50,387.31/x - Step 3: Cross multiply
90,676.08x = 125,125.05 × 50,387.31 - Step 4: Simplify right side
90,676.08x = 6,304,714,683.12 - Step 5: Solve for x
x = 6,304,714,683.12/90,676.08 - Step 6: Final answer
x = 69,530.08
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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.