Finding the Fourth Proportional to 75,477.06, 113,214.42 and 19,316.68
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Solution
The fourth proportional to 75,477.06, 113,214.42 and 19,316.68 is: 28,974.72
Step by Step Solution
- Step 1: Write the proportion equation
75,477.06 : 113,214.42 = 19,316.68 : x - Step 2: Convert to fraction form
75,477.06/113,214.42 = 19,316.68/x - Step 3: Cross multiply
75,477.06x = 113,214.42 × 19,316.68 - Step 4: Simplify right side
75,477.06x = 2,186,926,439.49 - Step 5: Solve for x
x = 2,186,926,439.49/75,477.06 - Step 6: Final answer
x = 28,974.72
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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.