Finding the Fourth Proportional to 86,579.60, 119,479.68 and 48,853.76
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Solution
The fourth proportional to 86,579.60, 119,479.68 and 48,853.76 is: 67,418.09
Step by Step Solution
- Step 1: Write the proportion equation
86,579.60 : 119,479.68 = 48,853.76 : x - Step 2: Convert to fraction form
86,579.60/119,479.68 = 48,853.76/x - Step 3: Cross multiply
86,579.60x = 119,479.68 × 48,853.76 - Step 4: Simplify right side
86,579.60x = 5,837,031,611.60 - Step 5: Solve for x
x = 5,837,031,611.60/86,579.60 - Step 6: Final answer
x = 67,418.09
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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.