Finding the Fourth Proportional to 75,575.80, 113,363.70 and 19,415.80
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Solution
The fourth proportional to 75,575.80, 113,363.70 and 19,415.80 is: 29,123.70
Step by Step Solution
- Step 1: Write the proportion equation
75,575.80 : 113,363.70 = 19,415.80 : x - Step 2: Convert to fraction form
75,575.80/113,363.70 = 19,415.80/x - Step 3: Cross multiply
75,575.80x = 113,363.70 × 19,415.80 - Step 4: Simplify right side
75,575.80x = 2,201,046,926.46 - Step 5: Solve for x
x = 2,201,046,926.46/75,575.80 - Step 6: Final answer
x = 29,123.70
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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.