Finding the Fourth Proportional to 93,578.19, 129,135.78 and 51,136.98
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Solution
The fourth proportional to 93,578.19, 129,135.78 and 51,136.98 is: 70,567.87
Step by Step Solution
- Step 1: Write the proportion equation
93,578.19 : 129,135.78 = 51,136.98 : x - Step 2: Convert to fraction form
93,578.19/129,135.78 = 51,136.98/x - Step 3: Cross multiply
93,578.19x = 129,135.78 × 51,136.98 - Step 4: Simplify right side
93,578.19x = 6,603,613,799.14 - Step 5: Solve for x
x = 6,603,613,799.14/93,578.19 - Step 6: Final answer
x = 70,567.87
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.