Finding the Fourth Proportional to 77,279.39, 115,885.67 and 26,683.75
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Solution
The fourth proportional to 77,279.39, 115,885.67 and 26,683.75 is: 40,014.09
Step by Step Solution
- Step 1: Write the proportion equation
77,279.39 : 115,885.67 = 26,683.75 : x - Step 2: Convert to fraction form
77,279.39/115,885.67 = 26,683.75/x - Step 3: Cross multiply
77,279.39x = 115,885.67 × 26,683.75 - Step 4: Simplify right side
77,279.39x = 3,092,264,258.30 - Step 5: Solve for x
x = 3,092,264,258.30/77,279.39 - Step 6: Final answer
x = 40,014.09
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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.