Finding the Fourth Proportional to 75,323.08, 113,021.70 and 53,278.12
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Solution
The fourth proportional to 75,323.08, 113,021.70 and 53,278.12 is: 79,943.41
Step by Step Solution
- Step 1: Write the proportion equation
75,323.08 : 113,021.70 = 53,278.12 : x - Step 2: Convert to fraction form
75,323.08/113,021.70 = 53,278.12/x - Step 3: Cross multiply
75,323.08x = 113,021.70 × 53,278.12 - Step 4: Simplify right side
75,323.08x = 6,021,583,695.20 - Step 5: Solve for x
x = 6,021,583,695.20/75,323.08 - Step 6: Final answer
x = 79,943.41
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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.