Finding the Fourth Proportional to 75,337.20, 113,005.80 and 19,177.20
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Solution
The fourth proportional to 75,337.20, 113,005.80 and 19,177.20 is: 28,765.80
Step by Step Solution
- Step 1: Write the proportion equation
75,337.20 : 113,005.80 = 19,177.20 : x - Step 2: Convert to fraction form
75,337.20/113,005.80 = 19,177.20/x - Step 3: Cross multiply
75,337.20x = 113,005.80 × 19,177.20 - Step 4: Simplify right side
75,337.20x = 2,167,134,827.76 - Step 5: Solve for x
x = 2,167,134,827.76/75,337.20 - Step 6: Final answer
x = 28,765.80
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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.