Finding the Fourth Proportional to 75,485.60, 113,228.08 and 19,325.60
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Solution
The fourth proportional to 75,485.60, 113,228.08 and 19,325.60 is: 28,988.32
Step by Step Solution
- Step 1: Write the proportion equation
75,485.60 : 113,228.08 = 19,325.60 : x - Step 2: Convert to fraction form
75,485.60/113,228.08 = 19,325.60/x - Step 3: Cross multiply
75,485.60x = 113,228.08 × 19,325.60 - Step 4: Simplify right side
75,485.60x = 2,188,200,582.85 - Step 5: Solve for x
x = 2,188,200,582.85/75,485.60 - Step 6: Final answer
x = 28,988.32
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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.