Finding the Fourth Proportional to 77,032.75, 106,268.41 and 48,338.12
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Solution
The fourth proportional to 77,032.75, 106,268.41 and 48,338.12 is: 66,683.52
Step by Step Solution
- Step 1: Write the proportion equation
77,032.75 : 106,268.41 = 48,338.12 : x - Step 2: Convert to fraction form
77,032.75/106,268.41 = 48,338.12/x - Step 3: Cross multiply
77,032.75x = 106,268.41 × 48,338.12 - Step 4: Simplify right side
77,032.75x = 5,136,815,154.79 - Step 5: Solve for x
x = 5,136,815,154.79/77,032.75 - Step 6: Final answer
x = 66,683.52
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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.