Finding the Fourth Proportional to 83,045.82, 124,381.43 and 38,578.99
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Solution
The fourth proportional to 83,045.82, 124,381.43 and 38,578.99 is: 57,781.47
Step by Step Solution
- Step 1: Write the proportion equation
83,045.82 : 124,381.43 = 38,578.99 : x - Step 2: Convert to fraction form
83,045.82/124,381.43 = 38,578.99/x - Step 3: Cross multiply
83,045.82x = 124,381.43 × 38,578.99 - Step 4: Simplify right side
83,045.82x = 4,798,509,944.16 - Step 5: Solve for x
x = 4,798,509,944.16/83,045.82 - Step 6: Final answer
x = 57,781.47
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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.