Finding the Fourth Proportional to 75,624.18, 113,238.09 and 53,316.78
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Solution
The fourth proportional to 75,624.18, 113,238.09 and 53,316.78 is: 79,835.45
Step by Step Solution
- Step 1: Write the proportion equation
75,624.18 : 113,238.09 = 53,316.78 : x - Step 2: Convert to fraction form
75,624.18/113,238.09 = 53,316.78/x - Step 3: Cross multiply
75,624.18x = 113,238.09 × 53,316.78 - Step 4: Simplify right side
75,624.18x = 6,037,490,332.15 - Step 5: Solve for x
x = 6,037,490,332.15/75,624.18 - Step 6: Final answer
x = 79,835.45
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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.