Finding the Fourth Proportional to 75,412.10, 113,118.05 and 19,252.21
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Solution
The fourth proportional to 75,412.10, 113,118.05 and 19,252.21 is: 28,878.29
Step by Step Solution
- Step 1: Write the proportion equation
75,412.10 : 113,118.05 = 19,252.21 : x - Step 2: Convert to fraction form
75,412.10/113,118.05 = 19,252.21/x - Step 3: Cross multiply
75,412.10x = 113,118.05 × 19,252.21 - Step 4: Simplify right side
75,412.10x = 2,177,772,357.13 - Step 5: Solve for x
x = 2,177,772,357.13/75,412.10 - Step 6: Final answer
x = 28,878.29
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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.