Finding the Fourth Proportional to 97,092.36, 134,028.75 and 65,279.70
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Solution
The fourth proportional to 97,092.36, 134,028.75 and 65,279.70 is: 90,113.75
Step by Step Solution
- Step 1: Write the proportion equation
97,092.36 : 134,028.75 = 65,279.70 : x - Step 2: Convert to fraction form
97,092.36/134,028.75 = 65,279.70/x - Step 3: Cross multiply
97,092.36x = 134,028.75 × 65,279.70 - Step 4: Simplify right side
97,092.36x = 8,749,356,591.38 - Step 5: Solve for x
x = 8,749,356,591.38/97,092.36 - Step 6: Final answer
x = 90,113.75
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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.