Finding the Fourth Proportional to 86,679.68, 119,609.16 and 48,946.64
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Solution
The fourth proportional to 86,679.68, 119,609.16 and 48,946.64 is: 67,541.39
Step by Step Solution
- Step 1: Write the proportion equation
86,679.68 : 119,609.16 = 48,946.64 : x - Step 2: Convert to fraction form
86,679.68/119,609.16 = 48,946.64/x - Step 3: Cross multiply
86,679.68x = 119,609.16 × 48,946.64 - Step 4: Simplify right side
86,679.68x = 5,854,466,495.22 - Step 5: Solve for x
x = 5,854,466,495.22/86,679.68 - Step 6: Final answer
x = 67,541.39
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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.