Finding the Fourth Proportional to 97,745.60, 134,885.25 and 55,305.05
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Solution
The fourth proportional to 97,745.60, 134,885.25 and 55,305.05 is: 76,318.88
Step by Step Solution
- Step 1: Write the proportion equation
97,745.60 : 134,885.25 = 55,305.05 : x - Step 2: Convert to fraction form
97,745.60/134,885.25 = 55,305.05/x - Step 3: Cross multiply
97,745.60x = 134,885.25 × 55,305.05 - Step 4: Simplify right side
97,745.60x = 7,459,834,821.09 - Step 5: Solve for x
x = 7,459,834,821.09/97,745.60 - Step 6: Final answer
x = 76,318.88
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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.