Finding the Fourth Proportional to 97,770.60, 134,922.48 and 55,329.12
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Solution
The fourth proportional to 97,770.60, 134,922.48 and 55,329.12 is: 76,353.65
Step by Step Solution
- Step 1: Write the proportion equation
97,770.60 : 134,922.48 = 55,329.12 : x - Step 2: Convert to fraction form
97,770.60/134,922.48 = 55,329.12/x - Step 3: Cross multiply
97,770.60x = 134,922.48 × 55,329.12 - Step 4: Simplify right side
97,770.60x = 7,465,142,086.62 - Step 5: Solve for x
x = 7,465,142,086.62/97,770.60 - Step 6: Final answer
x = 76,353.65
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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.