Finding the Fourth Proportional to 75,508.13, 113,261.29 and 19,347.80
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Solution
The fourth proportional to 75,508.13, 113,261.29 and 19,347.80 is: 29,021.46
Step by Step Solution
- Step 1: Write the proportion equation
75,508.13 : 113,261.29 = 19,347.80 : x - Step 2: Convert to fraction form
75,508.13/113,261.29 = 19,347.80/x - Step 3: Cross multiply
75,508.13x = 113,261.29 × 19,347.80 - Step 4: Simplify right side
75,508.13x = 2,191,356,171.99 - Step 5: Solve for x
x = 2,191,356,171.99/75,508.13 - Step 6: Final answer
x = 29,021.46
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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.