Finding the Fourth Proportional to 75,432.77, 113,149.15 and 19,272.99
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Solution
The fourth proportional to 75,432.77, 113,149.15 and 19,272.99 is: 28,909.48
Step by Step Solution
- Step 1: Write the proportion equation
75,432.77 : 113,149.15 = 19,272.99 : x - Step 2: Convert to fraction form
75,432.77/113,149.15 = 19,272.99/x - Step 3: Cross multiply
75,432.77x = 113,149.15 × 19,272.99 - Step 4: Simplify right side
75,432.77x = 2,180,722,436.46 - Step 5: Solve for x
x = 2,180,722,436.46/75,432.77 - Step 6: Final answer
x = 28,909.48
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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.