Finding the Fourth Proportional to 75,641.80, 113,462.70 and 52,313.80
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Solution
The fourth proportional to 75,641.80, 113,462.70 and 52,313.80 is: 78,470.70
Step by Step Solution
- Step 1: Write the proportion equation
75,641.80 : 113,462.70 = 52,313.80 : x - Step 2: Convert to fraction form
75,641.80/113,462.70 = 52,313.80/x - Step 3: Cross multiply
75,641.80x = 113,462.70 × 52,313.80 - Step 4: Simplify right side
75,641.80x = 5,935,664,995.26 - Step 5: Solve for x
x = 5,935,664,995.26/75,641.80 - Step 6: Final answer
x = 78,470.70
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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.